The Retrograde Analysis Corner
No. 81, Jan. 1996 - SOLUTIONS
6598 - Henrik Juel
a) Add black pawns on a6, a7 and b7.
b) Add a white pawn on b7, and black pawns on a6, b6, and c6.
c) Add a white rook on b7, and black pawns on a7, b6, and c7.
d) Add a white rook on b7, a white pawn on a7, and black pawns
on a6, b6, and c7.
6599 - Henrik Juel
1. e3 d6 2. Qh5 Bg4 3. e4 Bd1 4. Qd1
6600 - Unto Heinonen
Intended: 1. Nc3 Nf6 2. Ne4 Ne4 3. b4 Nf2 4. e4 c5 5. Bb5 Nc6 6. Qe2 d5 7. Qc4 Bg4 8. Ne2 Qd7 9. 00 Nd3 10. Rf7 Nc1 11. Rf3 Nb3 12. Rd3 Kf7 13. ab3 Re8 14. Ra6 Nb8 15. Rg6 a5 16. h4 a4 17. h5 a3 18. h6 a2 19. hg7 a1=N 20. gh8=N#
Olli Heimo found the following cook: 1. Na3 a6 2. Nb5 ab5 3. a3 b4 4. ab4 Nf6 5. e4 Ng4 6. Bb5 Nf2 7. Qe2 Nc6 8. Qc4 d5 9. Ne2 Bg4 10. 00 Nd3 11. Ra3 Nc1 12. Rd3 f6 13. Rf6 Nb3 14. Rg6 Na1 15. h4 Kf7 16. h5 Qd7 17. h6 Re8 18. hg7 Nb8 19. b3 c5 20. gh8=N#
6600c - Unto Heinonen
1. Nc3 Nf6 2. Ne4 Ne4 3. b4 Nf2 4. e4 h5 5. Qh5 Rh5 6. Ne2 Rc5 7. Ng3 d5 8. Be2 Bd7 9. 00 Nd3 10. Rf7 Nc1 11. Rg7 Nb3 12. Rg6 Kf7 13. ab3 Be8 14. Ra5 Qd7 15. Rb5 a5 16. h4 a4 17. h5 a3 18. h6 a2 19. h7 a1=N 20. h8=N#