[Retros] Three SPG's from Paul Monsky

[Nicolas.Dupont at math.univ-lille1.fr]

Happy new year to you all !

Natch's verdict :


>   2krrnq1/1b1ppp2/1pp3pp/8/8/P1P5/2RPPPPP/b1BQKBNR   (after 15.0)


Solution 1 (position 1679)
1.Pb2-b4   Pc7-c6   2.Pb4-b5   Dd8-c7   3.Pb5-b6   Dc7-g3
4.Pb6xa7   Pb7-b6   5.Pa7xb8=F Fc8-b7   6.Fb8-f4   O-O-O
7.Ff4-h6   Pg7xh6   8.Pa2-a3   Ff8-g7   9.Ta1-a2   Fg7-a1
10.Cb1-c3   Cg8-f6   11.Cc3-d5   Th8-e8   12.Cd5-f4   Dg3-g8
13.Cf4-g6   Ph7xg6   14.Pc2-c3   Cf6-h7   15.Ta2-c2   Ch7-f8

La r‚solution finit le Wed Jan 16 14:15:01 2008
Temps de r‚solution : 28 mn 28.63 s.


>   rk1r2n1/bp2pp2/2ppb1pp/8/P4q1P/8/2PPPPP1/RNBQKBN1  (after 15.5)


Solution 1 (position 1497)
1.Pb2-b4   Pc7-c6   2.Pb4-b5   Dd8-c7   3.Pb5-b6   Dc7-f4
4.Pb6xa7   Pd7-d6   5.Pa7xb8=C Fc8-e6   6.Cb8-d7   O-O-O
7.Cd7-e5   Rc8-b8   8.Ce5-g6   Ph7xg6   9.Pa2-a4   Th8-h5
10.Ta1-a3   Th5-a5   11.Ta3-h3   Ta5-a8   12.Th3-h6   Pg7xh6
13.Ph2-h4   Ff8-g7   14.Th1-h3   Fg7-d4   15.Th3-a3   Fd4-a7
16.Ta3-a1

La r‚solution finit le Wed Jan 16 16:31:10 2008
Temps de r‚solution : 2 h 11 mn 42.25 s.

Crossed captures have been extensively studied. I remember a PJ (by Andrey
Frolkin ?) showing 8 of them by the same side !

Cheers,

Nicolas.