The Retrograde Analysis Corner

Problem Paradise

No. 16

W052 - Ayako Okaya
Problem Paradise 16

[rs1qk1sr/pp3p1p/3ppp2/3b2b1/8/8/P1PPPPPP/RSBQKBSR]

15+15. Proof game in 7.0 moves
(b) without Nb8
(c) without Qd8

W053 - Mark Kirtley
Problem Paradise 16

[rsbqk3/ppppppbr/5pp1/7s/8/1PPP4/P3PPPP/RS2KBSR]

14+16. Proof game in 7.0 moves (2 solutions)

R027 - Kazuo Watanabe
Problem Paradise 16

[rsbqkb1r/pppppppp/8/8/8/7P/PPPPPPP1/RSBQKB1R]

15+15. Proof game in 4.0 moves (Anti-Andernach)

R028 - Paul Raican
Problem Paradise 16

[2bk1b2/pps1pppp/8/8/8/8/PPPPP1PP/2BQKB2]

11+10. Proof game in 13.0 moves (Einstein)

R029 - Thierry le Gleuher
Problem Paradise 16

[3qkbsr/p1pppp1p/8/8/8/8/PPPPPP2/RSBQKB2]

12+11. Proof game in 8.0 moves

R030 - Thierry le Gleuher
Dedicated to Pascal Wassong
Problem Paradise 16

[7r/ppp4s/2p1pp1b/7k/2RP3q/3QB1pb/PP1SP1Ps/1R2KBSr]

13+15. Proof game in 20.0 moves

R031 - Leonid N. Borodatow
Problem Paradise 16

[r3k3/pp2p2P/5p2/5p2/P7/RP1NPPPP/p2Pp3/R3K3]

12+9. (PRA) White to move. Who may castle?

R032 - Satoshi Hashimoto
Problem Paradise 16

[1nbqk1nr/1ppppp1p/8/p7/3B1P2/2PBKNPP/P1PPP3/RN1Q3R]

16+13. Proof game in 12.5 moves

R033 - Satoshi Hashimoto
Problem Paradise 16

[2nq1rn1/pp1kp1p1/3pb3/3p1p2/7r/3K1PP1/PP1PPNP1/RNBQ1B2]

14+14. Proof game in 19.0 moves