Home > Neutreeko > Puzzles > Hard 4001-4250
| 1. d4-b4, | 2. a4-b3, | 3. c2-c1, | 4. b3-a3, | 5. b2-b3, | 6. a3-a1, | 7. c1-c2 |
| 1. d4-b4, | 2. a4-b3, | 3. c2-c1, | 4. b3-a3, | 5. b2-b3, | 6. a3-a5, | 7. c1-c2 |
| 1. d4-b4, | 2. a4-b3, | 3. c2-c1, | 4. b3-a3, | 5. b2-b3, | 6. a3-b2, | 7. c1-c2 |
| 1. d4-b4, | 2. a4-a1?, | 3. b2-b3 | ||||
| 1. d4-b4, | 2. a4-a1?, | 3. c2-b1 | ||||
| 1. d4-b4, | 2. a4-a1?, | 3. b4-a3 | ||||
| 1. d4-b4, | 2. a4-a1?, | 3. b4-b3 | ||||
| 1. d4-b4, | 2. a4-a5?, | 3. b2-b3 | ||||
| 1. d4-b4, | 2. a4-a5?, | 3. c2-b1 | ||||
| 1. d4-b4, | 2. a4-a5?, | 3. b4-a3 | ||||
| 1. d4-b4, | 2. a4-a5?, | 3. b4-b3 | ||||
| 1. d4-b4, | 2. a4-b5?, | 3. c2-b1 | ||||
| 1. d4-b4, | 2. a4-b5?, | 3. b4-a3 | ||||
| 1. d4-b4, | 2. a4-b5?, | 3. b4-b3 | ||||
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| 1. c2-c1?, | 2. e4-b1 | (black wins in 13 moves) | ||||
| 1. b2-c1?, | 2. a4-b3 | (black wins in 21 moves) | ||||
| 1. b2-b1?, | 2. a4-b3 | (black wins in 23 moves) | ||||
| 1. b2-a3?, | 2. e4-d3 | (black wins in 37 moves) | ||||
| 1. b2-b5?, | 2. c3-c5 | (black wins in 39 moves) | ||||
| 1. c2-b3?, | 2. a4-c4 | (draw) | ||||
| 1. c2-b3?, | 2. a4-b5 | (draw) | ||||
| 1. c2-d1?, | 2. a4-b5 | (draw) | ||||
| 1. c2-d1?, | 2. e4-b1 | (draw) | ||||
| 1. c2-d3?, | 2. e4-d5 | (draw) | ||||
| 1. b2-a2?, | 2. e4-d3 | (black loses in 34 moves) | ||||
| 1. d4-d5?, | 2. a4-b3 | (black loses in 34 moves) | ||||
| 1. c2-e2?, | 2. c3-c5 | (black loses in 28 moves) | ||||
| 1. c2-e2?, | 2. e4-d5 | (black loses in 28 moves) | ||||
| 1. c2-b1?, | 2. a4-c4 | (black loses in 22 moves) | ||||
| 1. b2-a1?, | 2. c3-c5 | (black loses in 10 moves) | ||||
| 1. d4-c5?, | 2. a4-d4 | (black loses in 4 moves) | ||||