The Retrograde Analysis Corner

Problem Paradise

No. 18, Apr.-June 2002

W081 - Ayako Okaya
Problem Paradise 18, Apr.-June 2000

[rnbq1bnr/ppp1pppp/3p4/3k4/8/6PN/PPPPPPBP/RNBQK2R]

16+16. Proof game in 5.5 moves

W082 - Satoshi Hashimoto
Ded. Tadashi Wakashima
Problem Paradise 18, Apr.-June 2000

[rnbk1r1n/1p1p1p1p/1p2p1p1/8/8/4P3/PPPP2PP/RNBQKBNR]

15+13. Proof game in 9.0 moves

W083 - Kazuo Watanabe
Problem Paradise 18, Apr.-June 2000

14+15. Proof game in 10.5 moves

R041 - Ladislav Salai
Problem Paradise 18, Apr.-June 2000

[4N1Rk/1p1pP1N1/5KPR/3P4/8/8/2P1P1P1/8]

11+3. Last move?
(b): Pd5->a2
(c): (b) + Ng7->d5
(d): (c) + Kf6->f7

R042 - Mark Kirtley
Problem Paradise 18, Apr.-June 2000

[rnb2knr/ppppp1bp/5pQB/P6K/RPP5/3P4/B1NP1P1P/8]

13+14. Proof game in 20.0 moves

R043 - Michel Caillaud
Problem Paradise 18, Apr.-June 2000

[rnbbkbn1/ppB2pp1/N1p5/2PQ1R2/6K1/4Pr2/PPPNPN2/5B1R]

15+13. Proof game in 26.0 moves

R044 - Gianni Donati
Problem Paradise 18, Apr.-June 2000

[r2qbb1r/ppp1pppp/4p1B1/8/P7/1P3PPR/1Q1PP1RP/1NBk2NK]

15+14. Proof game in 21.0 moves

R045 - Satoshi Hashimoto
Problem Paradise 18, Apr.-June 2000

[rnbqRbnr/pppppkBQ/5pp1/P7/3P4/4P1Np/1PP1BPPP/1N3RK1]

16+16. Proof game in 16.0 moves

R046 - Leonid Borodatov
Problem Paradise 18, Apr.-June 2000

[kN6/b1p1p3/Pp6/p7/2N1P2P/Q1PbPPbP/1P6/1nR1BBKR]

16+9. Proca-retractor. Retract 10 moves, and then mate in 1.

R047 - Michel Caillaud
Problem Paradise 18, Apr.-June 2000

[8/8/1P4pn/Pn2Pr1b/pp2kPp1/4p1P1/K1ppqprP/b7]

7+16. shc#15 (Consequent Series-Helpmate in 15 moves)

R030c - Thierry le Gleuher
Problem Paradise 18, Apr.-June 2000

[6Br/ppp4n/2p3Pb/5p1k/Q2P3q/4P2b/PPP1KPPn/RN4Nr]

14+13. Proof game in 17.0 moves