Home > Neutreeko > Puzzles > Hard 4001-4250
| 1. b1-b5, | 2. c4-d5, | 3. d4-b4, | 4. a4-a5, | 5. b4-e4, | 6. a1-a4, | 7. c5-e3 |
| 1. b1-b5, | 2. c4-d5, | 3. d4-b4, | 4. a4-a5, | 5. b4-e4, | 6. a1-e1, | 7. b5-e2 |
| 1. b1-b5, | 2. c4-d5, | 3. d4-b4, | 4. a4-a5, | 5. b4-e4, | 6. a1-e5, | 7. b5-e2 |
| 1. b1-b5, | 2. c4-d5, | 3. d4-b4, | 4. a4-a5, | 5. b4-e4, | 6. a1-e5, | 7. c5-e3 |
| 1. b1-b5, | 2. c4-d5, | 3. d4-b4, | 4. a4-a5, | 5. b4-e4, | 6. a5-a2, | 7. e4-a4 |
| 1. b1-b5, | 2. c4-d5, | 3. d4-b4, | 4. a4-a5, | 5. b4-e4, | 6. a5-a2, | 7. b5-e2 |
| 1. b1-b5, | 2. c4-d5, | 3. d4-b4, | 4. a4-a5, | 5. b4-e4, | 6. a5-e1, | 7. b5-e2 |
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| 1. d4-d5?, | 2. a4-b5 | (black wins in 15 moves) | ||||
| 1. c5-a3?, | 2. a1-c3 | (black wins in 29 moves) | ||||
| 1. b1-a2?, | 2. a1-c3 | (black loses in 30 moves) | ||||