Printable Mate in 4 Puzzles

Answer key

1. Puzzle 0ngjM: e3h6 → f5b1 → h6c1 → b1c1 → b3d1 → c1d1 → f3e1 → d1e1 (the first move is the opponent’s setup move)
2. Puzzle 087XE: a6b5 → a5a6 → d8b8 → a6b7 → b8b7 → c1a1 → b7a7 → c7a7 (the first move is the opponent’s setup move)
3. Puzzle 0HCPo: f7g6 → c2g6 → e8f8 → f3g5 → d8e8 → g5e6 → f8g8 → g6g7 (the first move is the opponent’s setup move)
4. Puzzle 0I0Aj: e6e5 → g5g2 → f1g2 → d2d1 → g2f1 → d1f1 → h1g2 → f1g1 (the first move is the opponent’s setup move)
5. Puzzle 0I0Br: g1e1 → e6g5 → h7h6 → g5f7 → h6h5 → f8h8 → f6h7 → h8h7 (the first move is the opponent’s setup move)
6. Puzzle 00XGg: g1g2 → h7h2 → g2f1 → h2h1 → f3g1 → h1g1 → f1g1 → h8h1 (the first move is the opponent’s setup move)
7. Puzzle 0GSMC: e3e2 → f6g7 → f8g7 → d1d8 → g7f8 → g4f6 → g8h8 → d8f8 (the first move is the opponent’s setup move)
8. Puzzle 06o2P: h5h6 → g7g4 → h6h7 → f1h1 → f6h6 → f5f6 → h7h8 → h1h6 (the first move is the opponent’s setup move)
9. Puzzle 0bMMS: d7c6 → f3g4 → f7f5 → g4f5 → c6d7 → d5d7 → d8d7 → e1e8 (the first move is the opponent’s setup move)
10. Puzzle 0OcBn: c2c4 → e3e8 → d7c7 → e8c6 → c7b8 → e1e8 → b8a7 → e8a8 (the first move is the opponent’s setup move)
11. Puzzle 1dhKy: h8h7 → f7g6 → h7h8 → g4h4 → c1h6 → h4h6 → g7h6 → g6h6 (the first move is the opponent’s setup move)
12. Puzzle 0neOV: e8d7 → h5d5 → f8d6 → d5f5 → d7c6 → b3a4 → b7b5 → f5b5 (the first move is the opponent’s setup move)

Source: Lichess open puzzle database · database.lichess.org · CC0