MESON Chess Problem Database
Problem Display
PID: 49630 (8/6p1/1Q6/6p1/p1P1p1Bp/R3P2p/3P1k1K/2R2bN1 w - - 0 1)
Doukhan, Gerard
5th Comm., Het Belgisch Schaakbord (L'Echiquier Belge), 1980-1981
#2
9 + 8
| 5110 | Bekroonde Problemen | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Be2
- 2.Sxh3#
- 1...Bd3
- 2.Sxh3#
- 1...Bxc4
- 2.Sxh3#
- 1...g6
- 2.Qf6#
- 1...Be2
- Tries
- 1.Rca1?
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bd3
- 2.Sxh3#
- 1...g6
- 2.Qf6#
- 1...Bg2!
- 1...Bxc4
- 1.Rb1?
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bd3
- 2.Sxh3#
- 1...g6
- 2.Qf6#
- 1...Bg2!
- 1...Bxc4
- 1.Rd1?
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bd3
- 2.Sxh3#
- 1...g6
- 2.Qf6#
- 1...Bg2!
- 1...Bxc4
- 1.Raa1?
- threat
- 2.Rxf1#
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bd3
- 2.Sxh3#
- 1...Bg2!
- threat
- 1.Ra2?
- 1...Bxc4
- 2.Sxh3#
- 1...Bg2
- 2.d3#
- 1...Be2
- 2.Sxh3#
- 1...Bd3
- 2.Sxh3#
- 1...g6
- 2.Qf6#
- 1...a3!
- 1...Bxc4
- 1.Rxa4?
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bd3
- 2.Sxh3#
- 1...g6
- 2.Qf6#
- 1...Bg2!
- 1...Bxc4
- 1.Qd4?
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bd3
- 2.Sxh3#
- 1...g6
- 2.Qf6#
- 1...Bg2!
- 1...Bxc4
- 1.Qc5?
- threat
- 2.Qf8#
- 2.Qf5#
- 1...Bxc4
- 2.Sxh3#
- 2.Qf5#
- 1...Be2
- 2.Sxh3#
- 1...g6
- 2.Qf8#
- 1...Bg2!
- threat
- 1.Qa7?
- threat
- 2.Qf7#
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bg2!
- threat
- 1.Qc7?
- threat
- 2.Qf7#
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bg2!
- threat
- 1.Qd8?
- threat
- 2.Qf8#
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bg2!
- threat
- 1.Qb1?
- threat
- 2.Rxf1#
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bd3
- 2.Sxh3#
- 1...Bg2!
- threat
- 1.Qb4?
- threat
- 2.Qf8#
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bg2!
- threat
- 1.Qa6?
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bd3
- 2.Sxh3#
- 1...g6
- 2.Qf6#
- 1...Bg2!
- 1...Bxc4
- 1.Qc6?
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bd3
- 2.Sxh3#
- 1...g6
- 2.Qf6#
- 1...Bg2!
- 1...Bxc4
- 1.Qd6?
- threat
- 2.Qf8#
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bg2!
- threat
- 1.Qe6?
- threat
- 2.Qf5#
- 2.Qf7#
- 1...Bxc4
- 2.Sxh3#
- 2.Qf5#
- 1...Be2
- 2.Sxh3#
- 1...g6
- 2.Qf7#
- 2.Qf6#
- 1...Bg2!
- threat
- 1.Qg6?
- threat
- 2.Qf5#
- 2.Qf7#
- 1...Bxc4
- 2.Sxh3#
- 2.Qf5#
- 1...Be2
- 2.Sxh3#
- 1...Bg2!
- threat
- 1.Qb7?
- threat
- 2.Qf7#
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bg2!
- threat
- 1.Qb8?
- threat
- 2.Qf8#
- 1...Bxc4
- 2.Sxh3#
- 1...Be2
- 2.Sxh3#
- 1...Bg2!
- threat
- 1.d3?
- 1...Bxd3
- 2.Sxh3#
- 1...exd3
- 2.e4#
- 1...Bg2
- 2.Ra2#
- 1...Be2
- 2.Sxh3#
- 1...g6!
- 1...Bxd3
- 1.d4?
- 1...Bxc4
- 2.Sxh3#
- 1...exd4 ep
- 2.e4#
- 1...Bg2
- 2.Qb2#
- 1...Be2
- 2.Sxh3#
- 1...g6
- 2.Qf6#
- 1...Bd3!
- 1...Bxc4
- 1.c5?
- 1...Be2
- 2.Sxh3#
- 1...Bd3
- 2.Sxh3#
- 1...Bc4
- 2.Sxh3#
- 1...Bb5
- 2.Sxh3#
- 1...Ba6
- 2.Sxh3#
- 1...g6
- 2.Qf6#
- 1...Bg2!
- 1...Be2
- 1.Rca1?
- Keys
- 1.Qb2!
- 1...Bxc4
- 2.Sxh3#
- 1...Bg2
- 2.d4#
- 1...Be2
- 2.Sxh3#
- 1...Bd3
- 2.Sxh3#
- 1...g6
- 2.Qf6#
- 1...Bxc4
- 1.Qb2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::S(B),XP(c)
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- P(h);N_GUARD::QAR(I)
- Tries
- Try
- R(A);
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- P(h);N_GUARD::QAR(I)
- Refutation
- B(a);
- Try
- R(A);
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- P(h);N_GUARD::QAR(I)
- Refutation
- B(a);
- Try
- R(A);
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- P(h);N_GUARD::QAR(I)
- Refutation
- B(a);
- Try
- R(E);
- Threat
- R1(A),XB(a)
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- Refutation
- B(a);
- Try
- R(E);
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::R(E)+P(C)
- B(a);N_GUARD::S(B),XP(c)
- P(h);N_GUARD::QAR(I)
- Refutation
- P(d);
- Try
- R(E);XP(d)
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- P(h);N_GUARD::QAR(I)
- Refutation
- B(a);
- Try
- Q(I);
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- P(h);N_GUARD::QAR(I)
- Refutation
- B(a);
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- B(a);N_GUARD::S(B),XP(c)
- P(h);::QAR(I)
- Refutation
- B(a);
- Try
- Q(I);
- Threat
- QAR(I)
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- Refutation
- B(a);
- Try
- Q(I);
- Threat
- QAR(I)
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- Refutation
- B(a);
- Try
- Q(I);
- Threat
- QAR(I)
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- Refutation
- B(a);
- Try
- Q(I);
- Threat
- R1(A),XB(a)
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- Refutation
- B(a);
- Try
- Q(I);
- Threat
- QAR(I)
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- Refutation
- B(a);
- Try
- Q(I);
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- P(h);N_GUARD::QAR(I)
- Refutation
- B(a);
- Try
- Q(I);
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- P(h);N_GUARD::QAR(I)
- Refutation
- B(a);
- Try
- Q(I);
- Threat
- QAR(I)
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- Refutation
- B(a);
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- B(a);N_GUARD::S(B),XP(c)
- Refutation
- B(a);
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- B(a);N_GUARD::S(B),XP(c)
- Refutation
- B(a);
- Try
- Q(I);
- Threat
- QAR(I)
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- Refutation
- B(a);
- Try
- Q(I);
- Threat
- QAR(I)
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::S(B),XP(c)
- Refutation
- B(a);
- Try
- P(C);
- Vars
- B(a);N_GUARD,XP(C)::S(B),XP(c)
- P(e);OGATE,XP(C)::QAB(I)+P(F)
- B(a);N_GUARD::R(E)
- B(a);N_GUARD::S(B),XP(c)
- Refutation
- P(h);
- Try
- P(C);
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- P(e);EP,OGATE,XP(C)::QAB(I)+P(F)
- B(a);N_GUARD::QAR(I)
- B(a);N_GUARD::S(B),XP(c)
- P(h);N_GUARD::QAR(I)
- Refutation
- B(a);
- Try
- P(G);
- Vars
- B(a);N_GUARD::S(B),XP(c)
- P(h);N_GUARD::QAR(I)
- Refutation
- B(a);
- Try
- Actual
- Q(I);
- Vars
- B(a);N_GUARD,XP(G)::S(B),XP(c)
- B(a);N_GUARD::QAR(I)+P(C)
- B(a);N_GUARD::S(B),XP(c)
- P(h);N_GUARD::QAR(I)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).