purlJam

1. **Design Strategy**: The user wants a simple knitted square at an advanced difficulty level. This is an interesting combination — a simple object elevated with advanced techniques. Rather than writing a basic garter stitch square, I should incorporate advanced techniques that make this intellectually worthy of an "advanced" label while still producing a square. Options include: mitered/modular construction, entrelac, a square worked from the centre outward with short rows, a double-knit square, or a square with integrated lace or cable border. I'll choose a **mitred square worked from the centre outward** using short-row construction (German short rows), which is genuinely advanced but produces a satisfying, flat, beautiful square. This is a technique-rich pattern that justifies the advanced label. Actually, let me reconsider — a centre-out mitred square with German short rows and a grafted or three-needle cast-off join would be excellent. But let me think about what would be most educational and impressive for an advanced knitter making a "simple square." I'll design: **A square worked from corner to corner** (diagonal construction) incorporating a travelling cable that runs along the diagonal axis, worked flat. This features: long-tail cast-on, cable work, maintaining stitch count whilst working increases and decreases, and a decorative bind-off. That's genuinely advanced. Wait — let me think about what makes the most mathematical sense and is cleanest to write. Best choice: A **double-knitted square** — this is genuinely advanced (two layers knitted simultaneously), produces a beautiful reversible fabric, and is still "a simple square." The double knitting creates a two-colour reversible piece. Let me go with **a mitred square with a central cable panel**, worked from corner to corner. This is: - Cast on 3 sts - Increase each side every RS row - Work a central cable panel as stitches allow - Decrease back to 3 sts - This makes a perfect square Actually, for cleanest mathematical verification, let me go with a **centre-out square using short rows**, specifically the **Beekeeper's Quilt-style mitered square** but more advanced. Final decision: **A square worked from corner to corner (on the diagonal)** with: - Increases on RS rows to centre - A travelling rope cable down the centre - Decreases on RS rows back to end - This is clean, mathematically verifiable, and genuinely advanced For a 20cm (8in) square in worsted weight. 2. **Construction Plan**: - Worsted weight yarn, standard tension: 20 sts × 28 rows = 10cm (4in) in stocking stitch. For a square I'll use a textured stitch. - Let me use: 18 sts × 24 rows = 10cm (4in) in pattern (garter or moss stitch background with cable) - Target: 20cm × 20cm square - Corner to corner construction: cast on 3, increase to maximum width, then decrease back to 3 - For a square worked on the diagonal, if the square is 20cm × 20cm, the diagonal = 20 × √2 ≈ 28.3cm - Width at widest point = 20cm = half the diagonal... Actually let me think about the geometry more carefully. For a diagonal square: - The square has sides of length S - Worked corner to corner, you increase from 1 corner to the widest diagonal row, then decrease - The widest point (number of stitches) corresponds to the diagonal of the square = S√2 - At the widest row, stitches across = S√2 × (stitches per cm) - Rows total = S√2 × (rows per cm) ... wait, that's not right either. Let me think differently. When working corner to corner: - You're working across the diagonal - RS rows: k1, m1, k to last st, m1, k1 (2 increases per RS row) - WS rows: worked even - You increase every RS row (every 2 rows) - Total rows from start to widest = half the total rows - Total stitches at widest = cast-on + increases For the square to be mathematically correct: - Width of fabric at widest = length of diagonal of square - Height of fabric = half the diagonal If tension is 20 sts / 10cm and 28 rows / 10cm: - For a 20cm square: sts at widest = 20√2 × 2 = 56.57 → round to 57 sts (or make it 55 for neat numbers) - Rows to reach widest = 57 rows... hmm Actually the corner-to-corner geometry works like this: - Each 2-row repeat (1 RS increase row + 1 WS row) adds 2 stitches and advances 2 rows - Stitches per row increase maps to the horizontal measurement - Rows map to vertical measurement - For the piece to be a square: the ratio of width-to-height must equal 1 Horizontal measurement at widest = (max sts) / (sts per cm) Vertical measurement = (total rows) / (rows per cm) = (2 × increase rows) / (rows per cm) = (2 × increase rows) / (rows per cm) Since max sts = cast-on sts + 2 × increase rows: If cast-on = 3: increase rows = (max sts - 3) / 2 For a square: (max sts) / (sts per cm) = (2 × increase rows) / (rows per cm) (max sts) × (rows per cm) = 2 × increase rows × (sts per cm) (max sts) × 28 = 2 × ((max sts - 3)/2) × 20 28 × max sts = 20 × (max sts - 3) 28 × max sts = 20 × max sts - 60 8 × max sts = -60 That gives a negative number — something is wrong with my setup. Let me reconsider. Oh I see the issue. The geometry: the "width" when laid flat is measured along the needle (horizontal), and the "height" is the number of rows (vertical). For the piece to be a square when laid as a diamond: Actually when you lay a corner-to-corner square flat (as a diamond/square rotated 45°), it looks like a square rotated 45°. The actual square dimensions: - Side length S - When worked corner to corner, the piece measured flat (as a rotated square) has: - Width = diagonal of square = S√2 - Height = diagonal of square = S√2 So both width (in stitches) and height (in rows) equal S√2. Width: max_sts = S√2 × sts_per_cm Height: total_rows = S√2 × rows_per_cm But total_rows = 2 × increase_rows (increase phase = decrease phase) And max_sts = cast_on + 2 × increase_rows For cast_on = 3: increase_rows = (max_sts - 3) / 2 total_rows = 2 × (max_sts - 3) / 2 = max_sts - 3 So: max_sts - 3 = S√2 × rows_per_cm And: max_sts = S√2 × sts_per_cm Subtracting: 3 = S√2 × (sts_per_cm - rows_per_cm) With sts_per_cm = 2 (from 20 sts / 10cm) and rows_per_cm = 2.8 (from 28 rows / 10cm): 3 = S√2 × (2 - 2.8) = S√2 × (-0.8) Negative again — this means with this tension ratio (more rows than sts per cm), a corner-to-corner construction naturally produces a rectangle that is taller than wide unless adjusted. The fix: skip WS increase rows sometimes, or work WS rows with increases too, or use a different increase rate. Let me try: increase EVERY row (both RS and WS), cast on 3: - Increases happen every row - max_sts = cast_on + increase_rows (since we increase every row now... but by how much?) This is getting complicated. Let me simplify and just use a **flat square worked bottom-up**, which is the most mathematically clean approach, and add the advanced elements through techniques rather than construction. **REVISED PLAN**: Advanced flat square with: - Cast on using cable cast-on - **Central medallion lace panel** flanked by moss stitch borders - **Integrated I-cord border** worked simultaneously - **Sewn/Kitchener cast-off** at the top - The "advanced" elements: I-cord border worked simultaneously on all sides, which requires picking up and knitting back around — actually this is complex. Simplest clean approach for "advanced simple square": **Double-knitted square in two colours** — this IS genuinely advanced and produces a square. Target: 20cm × 20cm square Worsted tension in double knitting: approximately 18 sts (= 9 double-knit pairs) × 24 rows / 10cm — let me use 22 sts × 30 rows per 10cm for the single-layer equivalent, so double knitting on larger needles: let's say tension is 16 sts × 22 rows = 10cm in double knitting (each "unit" = 2 sts: 1 colour A + 1 colour B). Actually, double knitting tension: work on needles 1-2 sizes larger. For worsted yarn: - Normal worsted tension: 20 sts / 10cm on 4.5mm needles - Double knitting on 5.5mm: approximately 18 sts (9 pairs) / 10cm Hmm, let me just use a straightforward approach. **FINAL FINAL DECISION**: I'll make an **advanced simple square** using: 1. **Long-tail cast-on** 2. **Moss/seed stitch border** (4 sts each side) 3. **Central cable panel** (a 6-stitch rope cable running vertically down the centre) 4. **Garter stitch** sections flanking the cable 5. **Three-needle cast-off** to seam if making multiple for a throw — no, it's just one square 6. **Applied I-cord border** — worked at the end around all 4 edges 7. **Mattress stitch** finishing notes Actually, let me just make this clear and well-organised. A truly "advanced" square could feature: **Option: Modular entrelac-inspired mitred square** — but that's multiple squares. **ABSOLUTE FINAL DECISION**: A **square worked from the centre outward**, picking up stitches and working outward in sections, with a lace pattern. This is the most elegant and genuinely advanced approach. Construction: 1. Cast on 8 stitches, join to work as a very small square 2. Work short sections picking up as you go No — this is too complex to write cleanly. **I'm going with a simple, well-crafted approach:** A flat square (cast on, work rows, cast off) that is "advanced" through: 1. **Twisted German cast-on** (aka Long-tail cast-on twist variant) — note as advanced 2. **Central travelling cable** (C4F/C4B) with mock cables 3. **Live-stitch applied I-cord border** worked simultaneously from the beginning 4. **Kitchener stitch graft** at the cast-off edge to match cast-on Wait, I-cord borders worked simultaneously is actually a very clean advanced technique. Let me use that. **THE PATTERN:** A 20 × 20cm square (approximately 8 × 8 inches) - **Construction**: Flat, worked bottom to top - **Border**: Simultaneous I-cord border on left and right edges (cast on 3 extra sts each side) - **Body**: Seed stitch with a central 8-stitch cable panel - **Cast-on**: Cable cast-on (makes clean edge) - **Cast-off**: Live I-cord cast-off to match the sides, then graft cast-off row to original I-cord edge — actually this is getting very complicated. **TRULY FINAL ANSWER - Keeping it elegant:** I'll write a square that uses: 1. **Long-tail cast-on** 2. **Double moss stitch** (block moss) body — this looks beautiful 3. **Six-stitch rope cable** running up the centre 4. **Three-by-three rib** border (k3, p3) on all sides — worked in-pattern 5. **Picot cast-off** at the top 6. Applied **I-cord edging** at the end for finishing No wait. I'm overcomplicating this. Let me just write the damn pattern. **PATTERN SPECS:** Target size: 20cm × 20cm (8 × 8 in) Yarn: Worsted weight Tension: 20 sts × 28 rows = 10cm (4in) in stocking stitch Pattern tension: 22 sts × 30 rows = 10cm (4in) in double moss stitch (moss pulls in slightly) For 20cm width: 20 × 2.2 = 44 sts + cable sts Central cable: 8 sts Moss stitch panels: (44 - 8) / 2 = 18 sts each side Total cast-on: 18 + 8 + 18 = 44 sts Let me check: 44 sts ÷ 2.2 sts/cm = 20cm ✓ For 20cm height: 20 × 3.0 = 60 rows Hmm, but with the cable, the tension might differ. Let me use: Tension: 20 sts × 28 rows = 10cm in pattern (I'll specify this) For 20cm width: 20 × 2.0 = 40 sts For the pattern to be a square, 20cm height: 20 × 2.8 = 56 rows Let me make it cleaner: - Cast on 42 sts: this allows for a neat double moss repeat - Double moss stitch repeat is 4 sts wide and 4 rows tall - 42 = 4 × 10 + 2... not clean Let me do: - Cast on 44 sts - 4 sts seed stitch border each side - 8 sts cable panel in centre - 14 sts double moss each side - Total: 4 + 14 + 8 + 14 + 4 = 44 ✓ - Hmm, 14 isn't divisible by 4... Let me try: - Cast on 48 sts - 4 sts seed stitch border each side - 8 sts cable panel in centre - 16 sts double moss each side - Total: 4 + 16 + 8 + 16 + 4 = 48 ✓ - 16 is divisible by 4 ✓ Width check: 48 sts ÷ 2.0 sts/cm = 24cm — a bit wide for a "simple" square, but let's make it 24cm × 24cm or adjust gauge. For a 20cm × 20cm square with tension 20 sts / 10cm: 20 ÷ (20/10) = 20 ÷ 2 = 10cm for 20 sts 40 sts = 20cm ✓ Let me use: - Cast on 40 sts - 3 sts garter border each side - 8 sts cable panel in centre - 13 sts each side in double moss... 13 is odd, not divisible by 4 Hmm. Let me try: - Cast on 40 sts - 2 sts garter border each side - 8 sts cable panel in centre - 14 sts each side in double moss - Total: 2 + 14 + 8 + 14 + 2 = 40 ✓ - 14 ÷ 4 = 3.5 — not a whole number Let me try: - Cast on 44 sts - 2 sts border each side - 8 sts cable - 16 sts moss stitch each side? No: 2 + 16 + 8 + 16 + 2 = 44 ✓ and 16/4 = 4 ✓! Width: 44 sts × (10cm/20 sts) = 22cm (8.75in) Height for square: 22cm × (28 rows / 10cm) = 61.6 rows → 62 rows... but cable tension will pull it in a bit. Actually, knitting with cables and moss stitch, the tension changes. Let me specify: **Tension: 22 sts × 30 rows = 10cm (4in) in double moss stitch** (cables compress width, moss stitch is slightly tighter than st st) With 44 sts: 44 ÷ 2.2 = 20cm ✓ With 20cm height: 20 × 3.0 = 60 rows ✓ This works! 44 sts, 60 rows. But wait — the pattern tension should be measured in the actual pattern, not just moss stitch. With cables mixed in, the overall tension will be different from pure moss stitch. This is standard for cable patterns — the tension swatch should be in the main pattern. Let me simplify and just say: **Tension: 22 sts × 30 rows = 10cm (4in) in pattern as set** And design the square accordingly: - Cast on 44 sts - Work 60 rows in pattern - Cast off Let me verify the square: 44 sts ÷ (22 sts/10cm) = 20cm ✓ 60 rows ÷ (30 rows/10cm) = 20cm ✓ Perfect square! ✓ 3. **Quality Assurance**: - Pattern repeat must work out: - 2 sts garter border | 16 sts double moss | 8 sts cable | 16 sts double moss | 2 sts garter border = 44 ✓ - Double moss repeat: 4 sts × 4 rows — 16 sts = 4 repeats ✓ - Cable: C4F or C4B every 4th row, 8 sts with central rope cable - Actually: an 8-stitch panel with a 4-stitch cable crossed every 4 rows works as: k2, C4F, k2 OR as two 4-stitch cables: C4F, C4B Let me use a simple **central 6-stitch cable** (C6F/C6B — rope cable) and pad with 1 stitch each side in reverse st st: - 1 st rev st st | 6 st cable | 1 st rev st st = 8 sts ✓ - C6F every 6 rows (standard for 6-st rope cable) Actually for an 8-stitch panel I'll use: - p1, k6, p1 — with C6F (slip 3 to CN, hold front, k3, k3 from CN) every 6 rows Row counts for cable: cross every 6 rows, 60 rows total 60 ÷ 6 = 10 cable crossings ✓ (clean number, good) Double moss stitch (also called double seed stitch): Row 1: *k2, p2; rep from * Row 2: *k2, p2; rep from * Row 3: *p2, k2; rep from * Row 4: *p2, k2; rep from * Repeat rows 1-4 For 16 sts: 16 ÷ 4 = 4 repeats ✓ The borders: 2 sts garter (knit every row) — but this might look too thin. Let me use 3 sts. With 3 sts border: 3 + 16 + 8 + 16 + 3 = 46 sts Width: 46 ÷ 2.2 = 20.9cm ≈ 21cm — close enough, or I adjust. Alternatively, let me resize the whole thing to a neat 22cm square (easier numbers): 22cm width: 22 × 2.2 = 48.4 → 48 sts 22cm height: 22 × 3.0 = 66 rows 48 sts: 3 + 18 + 6 + 18 + 3 = 48 18 ÷ 4 = 4.5 — not clean Or: 4 + 16 + 8 + 16 + 4 = 48 ✓ (with 4-st garter border) Cable crossings every 6 rows: 66 ÷ 6 = 11 ✓ Width: 48 ÷ 2.2 = 21.8cm ≈ 22cm ✓ Height: 66 rows ÷ (30 rows/10cm) = 22cm ✓ Let me use this: 48 sts, 66 rows, 22cm × 22cm square. Actually you know what, let me just use a tension of **20 sts × 28 rows = 10cm** (standard worsted) and design for a 20cm square: 20 sts = 10cm → 2 sts/cm 28 rows = 10cm → 2.8 rows/cm For 20cm: 40 sts width, 56 rows height (for st st). But with a cable + moss stitch, the fabric pulls in, so I'd need fewer stitches to get 20cm. However, for simplicity, let me specify the tension AS the pattern tension. **SIMPLEST CLEAN APPROACH:** Tension: 20 sts × 28 rows = 10cm (4in) over double moss stitch and cable pattern combined For 20cm × 20cm: Width: 20cm × 2 sts/cm = 40 sts Height: 20cm × 2.8 rows/cm = 56 rows 40 sts: 3 (border) + 15 (moss) + 4 (cable) + 15 (moss) + 3 (border) = 40 15 ÷ 4 = 3.75 — not clean Let me try: 3 + 14 + 6 + 14 + 3 = 40 ✓ 14 ÷ 4 = 3.5 — not clean 3 + 16 + 6 + 16 + 3 = 44 Width: 44 ÷ 2 = 22cm — slightly wide OR: 2 + 16 + 4 + 16 + 2 = 40 ✓ 16 ÷ 4 = 4 ✓ 4-stitch cable (C4F): place 2 sts on CN, hold front, k2, k2 from CN Width: 40 ÷ 2 = 20cm ✓ Height: 56 rows ÷ 2.8 = 20cm ✓ For a 4-stitch cable, I'd cross every 4 rows: 56 ÷ 4 = 14 crossings — but I want to establish 2 rows before first cross, so: Rows 1-2: establish, Row 3: no cross, Row 4: first cross... Standard: for a C4F, work 4 rows plain between each cross: - Row 1 (RS): work cable row — cross - Rows 2-4: work plain - Row 5: cross again This gives a cross every 4 rows. But with only 56 rows: First cross at row 1, then rows 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49, 53 = that's 14 cable crosses on rows 1, 5, 9... 1 + 13×4 = 53. Row 53 is the last cross, then rows 54-56 are plain. Hmm, it's more conventional to establish the pattern first, then start crossing: - Rows 1-4: establish (no cross) - Row 5: first cross - Then every 4 rows: rows 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49, 53 That's: (53-5)/4 + 1 = 48/4 + 1 = 12 + 1 = 13 crossings — fine. Or start on row 3: Row 3, 7, 11, ..., 55: (55-3)/4 + 1 = 52/4 + 1 = 13 + 1 = 14 crossings — fine. I'll go with: cross on rows 5, 9, 13... (starting at row 5, every 4 rows after) Rows 1-4: no cross Row 5: C4F Row 9: C4F ...continuing... Last cross: 5 + 4n where 5 + 4n ≤ 56 → n ≤ 12.75 → n = 12 → last cross = 5 + 48 = 53 Total crossings: 13 ✓ This works cleanly! But wait — I want this to be TRULY advanced. A 4-stitch plain rope cable on a seed stitch background is more intermediate than advanced. Let me add something: **Advanced elements:** 1. **Long-tail cast-on** 2. **Simultaneous I-cord selvedge edges** (3 sts each side worked as a 3-stitch I-cord attached to the body on every RS row) — this is genuinely advanced 3. **Double moss stitch body** with central cable 4. **Sewn cast-off** (using tapestry needle to mimic long-tail cast-on) 5. **Duplicate stitch** monogram or decorative element Actually, the I-cord selvedge is a great advanced technique. Let me incorporate it. **I-cord selvedge**: At the beginning and end of every RS row, work 3 stitches as I-cord (sl1 wyif, k2 on the RS; on WS, k3). This creates a neat cord-like edge on both sides. Wait, actually a "knitted-in I-cord border" where you carry 3 extra sts that form a cord along each side: Cast on 3 extra sts at each end: Total: 3 (i-cord left) + body sts + 3 (i-cord right) = 3 + 40 + 3 = 46 sts? Hmm, or I can just keep 40 sts and use the selvedge sts as part of the border. Let me scrap the I-cord selvedge (too complex for a square pattern writeup) and instead use: **Advanced elements I'll include:** 1. **Cable cast-on** — explained in notes 2. **Double moss stitch** (also called double seed stitch) 3. **Eight-stitch horseshoe cable** panel in the centre (this is more advanced than a rope cable) 4. **Live I-cord applied border** worked after completion around all 4 edges 5. **German short rows** for the corners of the I-cord — actually this is for shaped items OK. I've been going back and forth too much. Let me COMMIT to a design: **FINAL COMMITTED DESIGN:** **"Centrepiece Square"** — A 20cm × 20cm decorative knitted square **Construction**: Flat, bottom to top **Yarn**: Worsted weight, two colours (MC and CC) for colour-work border Wait, no. Let me drop the colour work. Just one colour. **Construction**: Flat, bottom to top, with simultaneous left-edge I-cord selvedge **Stitch pattern**: Double moss stitch with a central 8-stitch rope cable **Border**: Garter stitch (4 rows at bottom, worked throughout as edge stitches, 4 rows at top) **Advanced techniques**: - Long-tail cast-on - 8-st rope cable (C4F) - Applied I-cord border (finished separately and sewn on) - Kitchener stitch graft between I-cord ends This is clean and I can write it up definitively. **STITCH COUNT COMMITMENT:** Tension: 20 sts × 28 rows = 10cm (4in) in double moss stitch — measured over a single colour, flat, blocked. For 20cm × 20cm square: - Width: 40 sts - Height: 56 rows Stitch breakdown (40 sts): - 4 sts garter selvedge (left) - 16 sts double moss stitch - 8 sts... wait, with only 40 sts: 4 + 8 + 16 + 8 + 4 = 40 — no room for an 8-st cable PLUS two 16-st moss panels. Let me revisit: 40 sts total - 2 sts garter border each side: 2 + 2 = 4 sts in borders - Remaining: 36 sts - Central cable: 8 sts - Moss stitch each side: (36-8)/2 = 14 sts each side - 14 ÷ 4 = 3.5 — not a whole number So 14 sts of double moss stitch would start mid-repeat on one side. Not ideal. Let me use 16 sts double moss each side and 8 sts cable: 16 + 16 + 8 = 40 sts (no border sts) — border would be incorporated into the moss stitch Actually I can make the garter border 2 sts: 2 + 14 + 8 + 14 + 2 = 40 ✓, but 14/4 = 3.5 ✗ Let me try different cable width: 2 + 16 + 4 + 16 + 2 = 40 ✓, 16/4 = 4 ✓, 4-stitch cable ✓ — this works! But a 4-stitch rope cable might seem too simple for "advanced". I can make it a travelling cable or a more interesting 4-st cable. OR, change the total stitch count: For a 6-stitch cable: need 40 - 6 = 34 remaining sts for borders + moss 34 = 2(border) + 15(moss) + 15(moss) + 2(border) = 34 ✓, but 15/4 = 3.75 ✗ For a 6-stitch cable: If I use 44 sts: 44 - 6 = 38, 38 - 4(borders) = 34, 34/2 = 17/side, 17/4 = 4.25 ✗ If I use 46 sts: 46 - 6 = 40, 40 - 4 = 36, 36/2 = 18/side, 18/4 = 4.5 ✗ If I use 48 sts: 48 - 6 = 42, 42 - 4 = 38, 38/2 = 19/side, 19/4 = 4.75 ✗ For 8-stitch cable: 48 sts - 8 - 4 = 36, 36/2 = 18/side, 18/4 = 4.5 ✗ 44 sts - 8 - 4 = 32, 32/2 = 16/side, 16/4 = 4 ✓ → 44 sts, but width = 22cm OR, change the border: 44 sts - 8 (cable) - 8 (borders, 4 each side) = 28, 28/2 = 14/side, 14/4 = 3.5 ✗ 44 sts - 8 (cable) - 2 (borders, 1 each side) = 34, 34/2 = 17/side, 17/4 = 4.25 ✗ 44 sts - 8 (cable) - 6 (borders, 3 each side) = 30, 30/2 = 15/side, 15/4 = 3.75 ✗ Looks like 44 sts with 4+1+1+4 = 10 border/framing sts doesn't divide right. Best option so far: 44 sts with the breakdown: **4 (garter border) + 16 (double moss) + 4 (central cable) + 16 (double moss) + 4 (garter border) = 44 sts** Width: 44 sts × (10cm ÷ 20 sts) = 22cm — I'll target 22cm × 22cm square. For 22cm height: 22cm × (28 rows ÷ 10cm) = 61.6 rows → 62 rows (even number needed) Hmm, 62/4 = 15.5 — not a whole number of double moss repeats. Let me try 60 rows: 60/4 = 15 — whole number ✓ Height: 60 rows ÷ (28/10) = 60/2.8 = 21.4cm Or 64 rows: 64/4 = 16 ✓ Height: 64 ÷ 2.8 = 22.9cm ≈ 23cm For a square: I want height ≈ width = 22cm 60 rows = 21.4cm (close enough, slightly taller fabric after blocking) 62 rows = 22.1cm ≈ 22cm ✓ — but 62/4 = 15.5, partial moss repeat The solution: add 2 rows of garter stitch at top AND bottom (total 4 top + 4 bottom = 8 garter rows at ends) Then the moss stitch section is 62 - 8 = 54 rows, 54/4 = 13.5 ✗ Or: 60 rows total, with 4 rows garter at each end: Middle section: 60 - 8 = 52 rows of moss+cable, 52/4 = 13 ✓ Height: 60 rows ÷ 2.8 = 21.4cm — close to 22cm For the cable (4 sts, rope cable, cross every 4 rows): In the middle 52 rows, start crossing at row 5 of the section: Actually from row 1 of the cable section (which starts at row 5 of total pattern, after 4 garter rows): Cross on row 3 (RS), then every 4 rows: 3, 7, 11, 15, 19, 23, 27, 31, 35, 39, 43, 47, 51 That's 13 crossings in 52 rows ✓ (last crossing at row 51, with row 52 plain before the final garter section) This all works. But a 4-stitch cable might seem too simple for "advanced." You know what — let me just use a slightly LARGER square and a more interesting cable. I'm going to commit fully: **TRULY FINAL SPECS:** Target: approximately 20cm × 20cm (8in × 8in) square Stitch count: 44 sts Row count: 60 rows Layout: - 4 sts garter border each side - 16 sts double moss stitch each side - 8 sts cable panel (with p1, k6, p1 arrangement — 6-stitch cable with purl framing) Wait: 4 + 16 + 8 + 16 + 4 = 48 sts → 48 ÷ 2 = 24cm... UGH. Let me do this once and for all with a target of approximately 20cm and find what works: Tension: 20 sts per 10cm = 2 sts per cm Target ~20cm: 40 sts = 20cm Target ~22cm: 44 sts = 22cm Target ~24cm: 48 sts = 24cm For a **4-stitch cable** (C4F): - 40 sts = 2 + 14 + 8(with purl framing: p1+k4+p1... wait that's not the cable) Honestly, let me just do a simple but beautiful **horseshoe cable** (12 sts) and make a bigger square: 48 sts = 24cm: 4 (garter) + 14 (seed st) + 12 (horseshoe cable) + 14 (seed st) + 4 (garter) = 48 ✓ 14 ÷ 2 = 7 (seed stitch has a 2-row repeat, so 7 repeats each side) ✓ Height for 24cm square: 24cm × 2.8 = 67.2 rows → use 68 rows 68 rows - 8 garter rows = 60 rows of seed stitch + cable 60 rows ÷ 6 (horseshoe cable repeat) = 10 ✓ ← this is beautiful! 24cm × 24cm square with 48 sts × 68 rows in pattern. Width: 48 ÷ 2 = 24cm ✓ Height: 68 ÷ 2.8 = 24.3cm ≈ 24cm ✓ (close enough, will be exact after blocking) Stitch breakdown: 4 + 14 + 12 + 14 + 4 = 48 ✓ Horseshoe cable (12 sts): The standard horseshoe cable uses 12 stitches: Row 1 (RS): p2, C4B, C4F, p2 Row 2 (WS): k2, p8, k2 Rows 3-4: Row 3: p2, k8, p2; Row 4: k2, p8, k2 (wait, I need to think about this more carefully) Actually, standard horseshoe cable (12 sts) over 8 rows: Row 1 (RS): p2, C4B, C4F, p2 Row 2: k2, p8, k2 Row 3: p2, k8, p2 Row 4: k2, p8, k2 Row 5: p2, C4B, C4F, p2 Row 6: k2, p8, k2 Row 7: p2, k8, p2 Row 8: k2, p8, k2 Repeat rows 1-8 For 60 cable rows: 60 ÷ 8 = 7.5 — not a whole number ✗ Let me use 64 cable rows: 64 ÷ 8 = 8 ✓ Total rows: 64 + 8 garter = 72 rows Height: 72 ÷ 2.8 = 25.7cm — now it's 24cm wide but 25.7cm tall, not a square. To get a square: need width = height Width = 48 ÷ 2 = 24cm Height should = 24cm 24cm × 2.8 = 67.2 rows → need ~68 rows For horseshoe cable (8-row repeat): 68 - 8 = 60 body rows, 60/8 = 7.5 ✗ Adjustment: Use 4 garter rows at top AND bottom (8 total), body = 60 rows, cable = ... OR: Use a different cable with a 6-row repeat: 60 ÷ 6 = 10 ✓ if body = 60 rows ✓ A simple rope cable on 8 sts with 6-row repeat: Row 1 (RS): p2, C4F, p2 [wait, that's only using 8 sts with 2 purl framing on each side... let me think] For 8-stitch cable panel (with framing included): p1, k6, p1 = 8 sts, where the 6-stitch rope cable crosses on row 1, then rows 3+5 plain, row 7 cross — making 6-row repeat. Wait: for a 6-stitch rope cable: Row 1 (RS — cable row): p1, C6F, p1 (cross) Row 2 (WS): k1, p6, k1 Row 3 (RS): p1, k6, p1 Row 4 (WS): k1, p6, k1 Row 5 (RS): p1, k6, p1 Row 6 (WS): k1, p6, k1 Repeat from row 1 This is a 6-row repeat. For 60 body rows: 60 ÷ 6 = 10 cable crosses ✓ Beautiful! Now stitch count: the cable panel is p1 + k6 + p1 = 8 sts Side panels in seed stitch... wait, can I use seed stitch (1×1) instead of double moss? Seed stitch on 14 sts: just *k1, p1* alternating, so 14 sts works fine (doesn't need to divide by 4)! 48 sts = 4 (garter border) + 14 (seed st) + 8 (cable panel) + 14 (seed st) + 4 (garter border) ✓ Height: 72 rows total for a 25.7cm... hmm, not square. I need height = 24cm = 67.2 rows, rounding to 68 rows. With 4 garter rows top and bottom: body = 60 rows, 60/6 = 10 cable repeats ✓ But 68 rows ÷ 2.8 = 24.3cm height vs 24cm width — that's only a 1.3% difference, which is within normal blocking range. I'll call it a 24cm × 24cm square and note it blocks square. **BUT WAIT** — seed stitch has a different tension than stocking stitch! Seed stitch is typically slightly WIDER and shorter than st st, so if my tension is measured in seed stitch, the numbers will be different. You know what, I need to stop second-guessing and just WRITE THE PATTERN. I'll specify the tension as being measured over the actual pattern stitch, state the cast-on and row counts, and give the blocked measurements. The pattern will be correct by construction. **ABSOLUTE FINAL SPECS — NO MORE CHANGES:** **Finished size**: Approximately 22cm × 22cm (8¾in × 8¾in) after blocking **Tension**: 20 sts × 28 rows = 10cm (4in) over seed stitch on 4.5mm (US 7) needles. Please adjust needle size as necessary to achieve this tension. **Cast on**: 44 sts Layout: 3 (garter st border) + 16 (seed stitch) + 6 (cable) + 16 (seed stitch) + 3 (garter st border) = 44 sts ✓ Check: 44 ÷ 2 sts per cm = 22cm width ✓ (using tension of 20 sts per 10cm) Height: For 22cm: 22 × 2.8 = 61.6 rows → 62 rows Garter rows: 4 at bottom + 4 at top = 8 rows Body rows: 62 - 8 = 54 rows 6-stitch rope cable, 4-row repeat (cross every 4 rows — tighter, more visible): 54 ÷ 4... wait, I changed to 4-row repeat. 54/4 = 13.5 ✗ 54 ÷ 6 = 9 ✓ (6-row repeat cable) Let me use 4 garter at bottom, 4 garter at top, 54 body rows, 6-stitch cable crossing every 6 rows = 9 crossings. ✓ Height: 62 rows ÷ 2.8 rows/cm = 22.1cm ≈ 22cm ✓ Stitch layout check: - 3 sts garter border (left) — k3 every row - 16 sts seed stitch — 16/2 = 8 repeats of k1p1 ✓ - 6 sts cable — C6F (slip 3 to CN hold front, k3, k3 from CN) - 16 sts seed stitch ✓ - 3 sts garter border (right) — k3 every row Total: 3+16+6+16+3 = 44 ✓ Cable panel rows: Starting with body row 1 (which is overall row 5, after the garter section): Actually, for the cable: I'll work 3 rows plain, then start crossing: Body rows 1-3: work plain (no cable cross — just knit the 6 cable sts on RS, purl on WS) Body row 4: nope, I want to cross every 6 rows. Let's do: cross on body rows 1, 7, 13, 19, 25, 31, 37, 43, 49 — that's rows 1+6n where n = 0,1,...8 That gives: 1, 7, 13, 19, 25, 31, 37, 43, 49 = 9 crossings ✓ (and last crossing is row 49, leaving rows 50-54 to finish) OR cross on body rows 3, 9, 15, 21, 27, 33, 39, 45, 51: 3, 9, 15, 21, 27, 33, 39, 45, 51 = 9 crossings ✓ (cross on row 51, rows 52-54 plain) Either works. I'll go with crossing on body rows 3, 9, 15, 21, 27, 33, 39, 45, 51. Hmm, but that means the FIRST cross is on body row 3 (overall row 7). Is there enough of a cable to cross on row 3? In standard cable knitting, you should have at least 2 rows of plain work before the first cross. Body row 3 comes after rows 1-2 of body, so yes, 2 rows of plain work before the first cross ✓. Then the cable repeat description: Rows 1-2: plain Row 3: cross (C6F) Rows 4-8: plain Row 9: cross ...every 6 rows... This is clean. ✓ **Now the advanced elements:** For "advanced" difficulty, I need to include genuinely advanced techniques. Here's what I'll include: 1. **Long-tail (continental) cast-on** — not particularly advanced, but professional 2. **Seed stitch** — intermediate 3. **6-stitch rope cable** — intermediate to advanced 4. **Applied I-cord border** worked after completion — this IS advanced 5. **Kitchener stitch** to graft I-cord ends — this IS advanced For the I-cord border applied at the end: - Pick up sts around all 4 edges - Work a 3-stitch I-cord border attached to the main piece - Graft the ends together with Kitchener stitch This is genuinely advanced, elevates a simple square, and results in a beautiful, professional finish. I'll also describe this as potentially a **motif for a blanket** (multiple squares sewn together), making the pattern more versatile. **MATERIALS:** - Worsted weight yarn: for a 22cm × 22cm square = 0.048 m² of fabric - Yardage: approximately 80-100m (90-110 yards) - 4.5mm (US 7) needles - Cable needle - Tapestry needle - Stitch markers **ABBREVIATIONS:** Standard UK knitting abbreviations. OK I'm now going to write the actual pattern. I have everything I need. Let me make sure my math is all consistent: **Summary of final numbers:** - Cast on: 44 sts using long-tail cast-on - Stitch layout: 3 (garter) | 16 (seed stitch) | 6 (cable) | 16 (seed stitch) | 3 (garter) - Tension: 20 sts × 28 rows = 10cm (4in) over seed stitch - Finished size: approximately 22cm × 22cm (8¾in × 8¾in) excluding I-cord border; approximately 24cm × 24cm (9½in × 9½in) with I-cord border - Row structure: - Rows 1-4: Garter stitch (knit every row) - Rows 5-58: Body pattern (seed stitch + cable), = 54 rows - Rows 59-62: Garter stitch (knit every row) - Total: 62 rows - Cable crosses (C6F) on body rows 3, 9, 15, 21, 27, 33, 39, 45, 51 - These correspond to overall rows 7, 13, 19, 25, 31, 37, 43, 49, 55 Let me verify: - Body starts at row 5 - Body row 3 = overall row 7 ✓ - Body row 9 = overall row 13 ✓ (7 + 6 = 13 ✓) - Body row 51 = overall row 55 ✓ (5 + 51 - 1 = 55 ✓) - After overall row 55 (cable), body rows 52-54 = overall rows 56-58 (plain), then rows 59-62 garter ✓ **I-cord border:** A 3-stitch applied I-cord border: - Using 4.5mm or 4mm needles, cast on 3 sts - *Pick up 1 st from edge, k2tog (last cord st + picked up st), k2; do NOT turn; slide to other end of needle* - Repeat from * around all 4 edges - Graft I-cord ends using Kitchener stitch Number of sts to pick up: - Bottom edge: 44 sts (1 per cast-on st) - Right edge: 62 rows → approximately 46 sts (3 sts for every 4 rows, or 31 per 2-row unit... let me calculate) - Standard pick-up ratio for garter/seed stitch: 3 sts for every 4 rows, or about 7 sts for every 10 rows - 62 rows × 0.75 = 46.5 → 46 sts - But for I-cord, you need a pick-up, so exact count matters less — just work at consistent intervals - Top edge: 44 sts - Left edge: 46 sts (same as right) - Total: 44 + 46 + 44 + 46 = 180 sts picked up - Plus 4 corner sts (pick up 1 extra at each corner): 180 + 4 = 184... actually at corners you just work 3 plain I-cord rows to turn the corner This is getting complex. For the pattern, I'll give a simplified instruction for the I-cord border that's technically accurate. OK. I have enough information. Let me write the actual pattern now. I'll keep the I-cord instructions clear but not overcomplicate them for the pattern. The planning is done. TIME TO WRITE. 4. **Final Calculations Summary**: - Cast on: 44 sts - Stitch breakdown: 3+16+6+16+3 = 44 ✓ - Tension: 20 sts × 28 rows = 10cm in seed stitch - Width: 44 ÷ 2 = 22cm ✓ - Total rows: 62 - Height: 62 ÷ 2.8 = 22.1cm ≈ 22cm ✓ (within blocking tolerance) - Garter setup rows: 4 (rows 1-4) - Body rows: 54 (rows 5-58) - Garter finishing rows: 4 (rows 59-62) - Total: 4 + 54 + 4 = 62 rows ✓ - Cable crossings: 9 times, on overall rows 7, 13, 19, 25, 31, 37, 43, 49, 55 ✓ (starting from body row 3, every 6 rows, last cross on body row 51 = overall row 55) Body row 3 = overall row 5+3-1 = 7 ✓ Body row 51 = overall row 5+51-1 = 55 ✓ Rows from last cross to end of body: body rows 52-54 = 3 rows ✓ Rows from last cross to very end: overall rows 56-62 = 7 rows (3 body + 4 garter) ✓ Everything checks out! Yardage calculation: - 44 sts × 62 rows = 2728 stitch units - Average stitches per yard for worsted weight in seed stitch ≈ 20-25 sts per yard - 2728 ÷ 20 = 136 yards maximum estimate - With seed stitch using slightly more yarn than st st, plus I-cord border: ~100-120 yards total for body - I-cord: 180 pick-up sts, 3-stitch cord, ≈ 20-25 yards for I-cord - Total: approximately 120-150 yards (110-140 metres) - I'll specify: 1 ball of 100g worsted weight (approximately 200m/220 yards) which gives plenty of yarn For the I-cord border, I could use the same ball since there's plenty. Or if making multiple squares for a blanket, plan accordingly. Let me now write the complete pattern.

[PRE-FLIGHT CHECKS] 1. **Completeness**: - ✅ Title and description - ✅ Materials (yarn weight, yardage, needle sizes, notions) - ✅ Tension (UK terminology, metric-first) - ✅ Finished measurements - ✅ Abbreviations - ✅ Pattern notes - ✅ Step-by-step instructions with row-by-row guidance - ✅ Finishing instructions (I-cord border with Kitchener stitch graft) - ✅ UK English spelling and metric-first measurements 2. **Mathematical Consistency**: - Stitch count: 3 + 16 + 6 + 16 + 3 = 44 sts ✅ - Width: 44 sts ÷ (20 sts / 10cm) = 22cm ✅ - Total rows: 4 (garter) + 54 (body) + 4 (garter) = 62 rows ✅ - Height: 62 rows ÷ (28 rows / 10cm) = 22.1cm ≈ 22cm ✅ (square confirmed within blocking tolerance) - Cable crossings: body rows 3, 9, 15, 21, 27, 33, 39, 45, 51 = 9 crossings in 54 body rows ✅ - Body row 3 maps to overall row 7 (4 garter rows + 3 body rows = 7) ✅ - Body row 51 maps to overall row 55 (4 + 51 = 55) ✅ - Final cable cross at overall row 55; rows 56–58 are plain body; rows 59–62 are final garter ✅ - Seed stitch panels: 16 sts each — seed stitch has 2-st repeat (k1, p1); 16 ÷ 2 = 8 repeats ✅ - Body row count for cable: 54 rows; first cross row 3, then every 6 rows → 3, 9, 15, 21, 27, 33, 39, 45, 51 — spacing: 9 – 3 = 6 ✅; 51 + 6 = 57 > 54, so no 10th crossing within body rows ✅ 3. **Difficulty Level — Advanced Elements Confirmed**: - ✅ Long-tail cast-on (explained) - ✅ Seed stitch (requires attention to tension) - ✅ 6-stitch rope cable using a cable needle - ✅ Applied I-cord border (worked as a separate cord attached stitch-by-stitch) - ✅ Kitchener stitch (live-stitch grafting) to join I-cord ends - ✅ Pick-up and knit technique for border 4. **Potential Issues Identified and Addressed**: - Seed stitch tension check: specified to measure tension in seed stitch (not stocking stitch) to ensure accurate sizing ✅ - Cable placement: verified 9 cable crosses fit neatly within 54 body rows, starting on row 3 (2 plain rows of establishment before first cross) ✅ - I-cord pick-up ratio: specified as 3 sts per 4 rows on row-edges (standard ratio) and 1 st per cast-on st on cast-on/cast-off edges ✅ - I-cord corner treatment: included instruction to work 3 unattached cord rows at each corner for neat mitred turn ✅ - Seed stitch alignment on RS vs WS rows: addressed in Pattern Notes ✅ - Yardage: 100g/200m ball gives ample yarn for both the square body and I-cord border ✅ All checks passed. Proceeding to pattern.