Home > Neutreeko > Puzzles > Hard 4001-4250
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-c5, | 6. a3-a1, | 7. c5-c1 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-c5, | 6. a3-a5, | 7. b2-e5 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-c5, | 6. a3-a5, | 7. b3-d5 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-c5, | 6. a3-a5, | 7. c5-b5 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-c5, | 6. a3-a5, | 7. c5-c1 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-c5, | 6. a3-b4, | 7. b2-e5 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. b1-a1, | 7. b2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. b1-a1, | 7. d2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. b1-a1, | 7. b3-a2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. b1-a2, | 7. b2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. b1-a2, | 7. d2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. b1-e1, | 7. b2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. b1-e1, | 7. d2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. b1-e1, | 7. b3-a2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. b1-e4, | 7. b2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. b1-e4, | 7. d2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. b1-e4, | 7. b3-a2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. a3-a1, | 7. b2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. a3-a1, | 7. d2-c1 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. a3-a1, | 7. b3-a2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. a3-a1, | 7. b3-a3 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. a3-c5, | 7. b2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. a3-c5, | 7. d2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. a3-c5, | 7. b3-a2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. e3-c3, | 7. b2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. e3-c3, | 7. d2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. e3-c3, | 7. b3-a2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. e3-c5, | 7. b2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. e3-c5, | 7. d2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. e3-c5, | 7. b3-a2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. e3-e1, | 7. b2-c1 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. e3-e1, | 7. d2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. e3-e1, | 7. b3-a2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. e3-e5, | 7. b2-c1 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. e3-e5, | 7. b2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. e3-e5, | 7. d2-c2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. e3-e5, | 7. b3-a2 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-b1, | 5. c1-d2, | 6. e3-e5, | 7. b3-e3 |
| 1. d4-b2, | 2. d3-a3, | 3. b4-b3, | 4. a1-a2?, | 5. b2-b1 | ||
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| 1. d4-c4?, | 2. a1-e5 | (black wins in 23 moves) | ||||
| 1. d4-c4?, | 2. e3-c5 | (black wins in 23 moves) | ||||
| 1. d4-e4?, | 2. d3-d5 | (black wins in 37 moves) | ||||
| 1. d4-c5?, | 2. d3-a3 | (draw) | ||||
| 1. d4-d5?, | 2. d3-e4 | (black loses in 28 moves) | ||||
| 1. d4-e5?, | 2. a1-d4 | (black loses in 4 moves) | ||||