The Retrograde Analysis Corner

Problem Paradise

No. 12, Winter 1999

PR16 - Satoshi Hashimoto
Problem Paradise 12, Winter 1999

[2b1k1nr/p2p1p2/p2p3b/1np5/7p/2P1BPN1/rPPN1PP1/R3KB1R]

13+14. Proof game in 21.5 moves

PR17 - Michel Caillaud
Problem Paradise 12, Winter 1999

[rBn1k1Br/n1p2p1Q/1p3pp1/3p1b1q/8/2P5/1PP1P1P1/RN1QKBNR]

15+13. Proof game in 22.5 moves

PR18 - Paul Raican
Problem Paradise 12, Winter 1999

[2bqkbnr/1p1ppppp/8/8/8/8/PPPPPPPP/R1BQKBNR]

15+12. Proof game in 7.0 moves (Einstein chess)
(b) bPd7 -> d5

PR19 - Thomas Volet
Problem Paradise 12, Winter 1999
Ded. Oscar Folger

[B7/pr3p2/p6b/8/2PPk1P1/2pRP1pP/1P1pPBRp/1K1NrNQ1]

PR20 - Leonid Borodatow
Problem Paradise 12, Winter 1999

[8/3ppp2/1p4p1/1p5p/3P1P2/K1kP2P1/1nrrPN1p/Bqbb1B2]