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1st Retro List Quick Composition Tourney

Retro Mailing List, 1997

We welcome original problems under the form of helpgames (aka SPG's) which include one or more series of moves in which the two kings move in consecution.

Here is an illustrative example, by an obscure Welsh composer:

0 - Ian Tinigonad
Original, 1997

[r1bq1b1r/pppp1ppp/3p4/6N1/1Q1n4/k1P1K3/P1PPPPPP/R4BNR] [Solution]

15+15. Shortest proof game in 15.5 moves

Rules

All entries so far

Here we list (perhaps with some delay) all entries submitted so far, together with all cooks already found.

1 - Henrik Juel <hj@serv1.imm.dtu.dk>
Retros List, 14 Apr 1997
Comm. Retros-List Quick Comp. Tourney

[5bnr/p1ppp3/K7/6pp/8/3R1P2/2PPP1P1/1k4N1] [Solution]

8+10. Proof game in 19.0 moves


2 - Henrik Juel <hj@serv1.imm.dtu.dk>
Retros List, 15 Apr 1997
(After Tinigonad)
Comm. Retros-List Quick Comp. Tourney

[r1bq1b1r/pppp1ppp/3p4/6NK/3n4/2PQ3N/P1PPPPPP/4k2R] [Solution]

13+15. Proof game in 21.5 moves


3 - Henrik Juel <hj@serv1.imm.dtu.dk>
Retros List, 15 Apr 1997
(After Tinigonad)
2nd Hon. Mention Retros-List Quick Comp. Tourney

[r1b1qb1r/pppp1ppp/3p4/6N1/P2nQ3/2P5/K1PPPPPP/R2k2NR] [Solution]

14+15. Proof game in 23.5 moves


4 - Ph. Schnoebelen <phs@lsv.ens-cachan.fr>
Retros List, 15 Apr 1997
(This was cooked by HJ and GW)

[rnb1kbnr/pp1ppppp/2p5/P7/1PR5/4P3/1BPPP1P1/KN1Q1BN1]

14+15. Proof game in 15.0 moves


5 - Goran Wicklund <etxgwld@etxb.ericsson.se>
Retros List, 16 Apr 1997
(This was cooked by HJ)

[8/p1ppp1pp/4kp2/5K2/8/6P1/1PPPPP1P/5B2]

9+8. (Circe, Rex Inclusive) Shortest proof game in 20.5 moves


5c - Goran Wicklund <etxgwld@etxb.ericsson.se>
Retros List, 18 Apr 1997
(This was cooked, says GW)

[8/p1pp2pp/4kp2/5K2/8/6P1/1PPPPP1P/5B2]

9+7. (Circe, Rex Inclusive) Shortest proof game in 20.5 moves


7 - Noam Elkies <elkies@abel.math.harvard.edu>
Retros List, 19 Apr 1997

[KnQ1kbnr/Bp1ppppp/p1p5/88/1PP5/P1P1PPPP/RN3BNR] [Solution]

16+13. Shortest proof game in 14.5 moves


8 - Noam Elkies <elkies@abel.math.harvard.edu>
Retros List, 19 Apr 1997

[rnbqkbnr/ppppp1pp/5p2/88/5P2/PPPPP1PP/RNBQKBNR]

16+16. (a) : Proof game in 8.0 moves. How many solutions?
(b) : Ke8 -> a5. Proof game in 7.5 moves. How many solutions?
(c) : Ke1 <-> Qd1. Shortest proof game in 8.5 moves. How many solutions?
(d) : (c) & Ke8 <-> Qd8. Shortest proof game in 9.0 moves. How many solutions?


7v - Noam Elkies <elkies@abel.math.harvard.edu>
Retros List, 20 Apr 1997
2nd Prize Retros-List Quick Comp. Tourney

[KnQ1kbnr/1p1ppppp/p1p5/2B5/8/1PP5/P1P1PPPP/RN3BNR]

16+13. Shortest proof game in 14.5 moves


9 - Timothy Luffingham <tjl@maths.warwick.ac.uk>
Retros List, 21 Apr 1997
Comm. Retros-List Quick Comp. Tourney

[rnb3n1/pp1pp2p/8/K4p2/k4P2/8/1P1PP2P/RNB3N1] [Solution]

10+11. (Monochromatic chess) Shortest proof game in 23.5 moves


10 - "L. Strangebeast" <Olli.Heimo@icl.fi>
Retros List, 1 May 1997
1st Hon. Mention Retros-List Quick Comp. Tourney

[3K2nr/2pppppp/2p3br/8/6P1/1PB5/P1PPPP1P/RN1QNk2]

14+12. Shortest proof game in 25.0 moves


11 - Unto Heinonen
Retros List, 21 May 1997
1st Prize Retros-List Quick Comp. Tourney

[r4b1k/pnppppp1/2p5/5np1/1qb5/1P1N2P1/PQPPPPP1/4RBNK] [Solution]

14+15. Shortest proof game in 25.0 moves


13 - Unto Heinonen
Retros List, 28 May 1997

[r2qk3/p1ppp1bp/1Bn2p1p/N1p5/4n3/1PP2PP1/2PPP2P/3QK1NR]

14+14. Proof game in 18.0 moves


14 - Olli Heimo <Olli.Heimo@icl.fi>
Retros List, 28 May 1997
Comm. Retros-List Quick Comp. Tourney

[b4BQb/1Pp1pRr1/3pP1k1/1p3p1p/7P/1PpP1p2/2P2P2/N3K3] [Solution]

12+12. Ortho-Reconstruction
(a) White to move in 22.5
(b) Black to move in 23.5


16c - Henrik Juel <hj@serv1.imm.dtu.dk>
Retros List, 5 Jun 1997
3rd Hon. Mention Retros-List Quick Comp. Tourney

[rn2Kbnr/ppppp3/8/6pp/8/N2R1P2/PPPPP1P1/R2k2N1] [Solution]

12+13. Proof game in 16.5 moves


18ccc - Goran Wicklund <etxgwld@etxb.ericsson.se>
Retros List, June 1997
Comm. Retros-List Quick Comp. Tourney

[rnbq1bnr/1pp1pppp/p7/3p3N/2P1Q3/N7/PP2PP2/k3K2R] [Solution]

10+16. Shortest proof game in 19.5 moves


19 - Unto Heinonen
Retros List, 12 Jun 1997

[rn2Kbn1/N2p1pp1/1pp5/4p1Pr/8/1Pp1P3/PP1PP3/1NBQkB2]

13+13. Shortest proof game in 29.5 moves


20 - Juha M Saukkola <jsaukkol@cc.helsinki.fi>
Retros List, 15 Jun 1997
Comm. Retros-List Quick Comp. Tourney

[r1b2bnr/pp1ppppp/1q6/2p5/4n2k/RQP5/PP1PPPP1/RNB2BNK] [Solution]

15+16. Shortest proof game in 13.5 moves