The Retrograde Analysis Corner

Orbit

Retro Problems published in 2003

971 - Valery Surkov

Orbit 17, January 2003

[8/8/6p1/5N1p/5Q2/5B1k/6Np/7K]

5+4. r# (reflex mate) Resolve the position

[8/8/6p1/5N1p/5Q2/5B1k/6Np/7K]

972 - Ivan Denkovski, Gligor Denkovski

Orbit 17, January 2003

[3qkrnr/1ppp1p2/n5p1/p5B1/8/4P1K1/2PP1PP1/RN1Q1RN1]

12+12. Proof game in 16,5 moves

[3qkrnr/1ppp1p2/n5p1/p5B1/8/4P1K1/2PP1PP1/RN1Q1RN1]

1034 - Valery Kirillov

Orbit 18, April 2003

In memory of Konstantin Kirilov

[2k5/4n3/8/8/8/8/5K2/8]

1+2. Proof game in 17.0 moves

[2k5/4n3/8/8/8/8/5K2/8]

1035 - Ivan Denkovski

Orbit 18, April 2003

[rnbqkbnN/3pppp1/1B6/R2Q4/p7/6PN/1PP1P3/R1r1KB2]

12+13. Proof game in 17,0 moves

[rnbqkbnN/3pppp1/1B6/R2Q4/p7/6PN/1PP1P3/R1r1KB2]

1089 - Gligor Denkovski

Orbit 19 (July 2003)

[rnbkqbnr/ppp1pppp/1P6/8/8/3BP3/PP3PPP/RNBKQ2R]

14+15. Proof game in 10.0 moves

[rnbkqbnr/ppp1pppp/1P6/8/8/3BP3/PP3PPP/RNBKQ2R]

1185 - Dmitrij Baibikov

Orbit 20 (October 2003)

[N1Nk2b1/Kq1PRp1b/1rrpP1B1/1PBRpp2/1p1p4/5P2/1P2P3/8]

13+12. First move of the BPh7?

[N1Nk2b1/Kq1PRp1b/1rrpP1B1/1PBRpp2/1p1p4/5P2/1P2P3/8]

1186 - Gligor Denkovski

Orbit 20 (October 2003)

[rnbqk3/pppp1ppp/3Qp3/n7/1K6/3P4/PPP1PPPP/RNB2BNR]

16+14. Proof game in 10.0 moves

[rnbqk3/pppp1ppp/3Qp3/n7/1K6/3P4/PPP1PPPP/RNB2BNR]

1187 - Gianni Donati

Orbit 20 (October 2003)

Dedicated to Pascal Wassong

This problem has later found to be cooked.

[1n6/1pp3pp/Q3p3/q4p1P/3Pk3/b2bPnrr/PPP2P2/RNB1KB2]

13+14. Proof game in 20.0 moves

[1n6/1pp3pp/Q3p3/q4p1P/3Pk3/b2bPnrr/PPP2P2/RNB1KB2]

1187c - Gianni Donati

Orbit 20 (October 2003)

Dedicated to Pascal Wassong

[1n6/1pp3pp/Q3p3/q4p1P/3Pk3/b2b1nrr/PPP2P2/RNB1KB2]

12+14. Proof game in 20.0 moves (C+)

[1n6/1pp3pp/Q3p3/q4p1P/3Pk3/b2b1nrr/PPP2P2/RNB1KB2]

1188 - Rustam Ubaidullaev

Orbit 20 (October 2003)

[3qr2r/2ppp3/npp4n/5p1p/b1P4B/NP6/k2PP1PP/b3KBNR]

12+15. Proof game in 21.0 moves

[3qr2r/2ppp3/npp4n/5p1p/b1P4B/NP6/k2PP1PP/b3KBNR]