The Retrograde Analysis Corner

Problem Paradise

No. 11, Autumn 1998

PR11 - Satoshi Hashimoto
Problem Paradise 11, Autumn 1998

[4kbn1/p2pppp1/p1p3r1/7p/5N2/4PP1P/P1P1PRbP/RNBQ1BK1]

15+13. Proof game in 14.0 moves

PR12 - Hitoshi Yanami
Problem Paradise 11, Autumn 1998

[rn4nr/pBp2ppp/5p2/1pp4R/1P3PP1/1N4PN/b1P5/2KQk3]

11+14. Proof game in 17.5 moves

PR13 - Gianni Donati
Problem Paradise 11, Autumn 1998

[rn1qbbnr/p1ppk2p/2P1p3/8/4p1p1/P7/P2PP1PP/1NBQKBNR]

14+15. Proof game in 18.0 moves

PR14 - Michel Caillaud
Problem Paradise 11, Autumn 1998
Ded. Satoshi Hashimoto

[5Q2/1P4P1/3Pp3/4k3/P1K5/1rnPp3/NpRpPpPP/5BR1]

14+8. h=3 (Help stalemate in 3)
Alsatian Circe

PR15 - Thomas Volet
Problem Paradise 11, Autumn 1998

[1N1b4/B1Pp1pp1/pqpK1p2/PB1p1P2/2Pk4/1P1P4/3P2P1/7Q]

H16c - Hitoshi Yanami
Problem Paradise 11, Autumn 1998 (for the corrected version)

[2kr4/p1p1nppp/n1p1pQ2/4Nbq1/rb1B4/RPN1PPP1/P1P1P2P/4K2R]

15+15. Proof game in 20.0 moves