MESON Chess Problem Database
Problem Display
PID: 93871 (q6N/p1p1P1Pp/7k/4p2N/5PP1/2Q5/8/2K2b2 w - - 0 1)
Prikryl, Bohuzlav
Ceske listy sachove, 1900
#2
8 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qh1
- 2.g8S#
- 1...Qg2
- 2.g8S#
- 1...Qf3
- 2.g8S#
- 1...Qe4
- 2.g8S#
- 1...Qc6
- 2.Qxc6#
- 2.g8S#
- 1...Qb7
- 2.g8S#
- 1...Qb8
- 2.Qc6#
- 1...Qf8
- 2.gxf8Q#
- 2.gxf8B#
- 1...Qxh8
- 2.Qc6#
- 1...exf4
- 2.Qf6#
- 1...e4
- 2.Qf6#
- 1...Qh1
- Tries
- 1.Qxe5?
- threat
- 2.Qf6#
- 2.Qg5#
- 2.Qe6#
- 1...Qe4
- 2.Qg5#
- 2.g8S#
- 1...Qd5
- 2.Qf6#
- 1...Qc8
- 2.Qf6#
- 2.Qg5#
- 1...Qe8
- 2.Qg5#
- 1...Qf8
- 2.Qg5#
- 2.gxf8Q#
- 2.gxf8B#
- 1...Qg8
- 2.Qf6#
- 2.Qg5#
- 1...Bd3
- 2.Qg5#
- 1...Bc4
- 2.Qf6#
- 2.Qg5#
- 1...Qc6+!
- threat
- 1.Qe3?
- threat
- 2.fxe5#
- 2.f5#
- 1...Qxh8
- 2.f5#
- 1...exf4
- 2.Qxf4#
- 1...Qf3
- 2.g8S#
- 1...Qe4
- 2.g8S#
- 1...Qf8
- 2.f5#
- 2.gxf8Q#
- 2.gxf8B#
- 1...e4
- 2.f5#
- 1...Qc6+!
- threat
- 1.f5?
- threat
- 2.Sf7#
- 2.Qd2#
- 2.Qe3#
- 1...Qxh8
- 2.Qd2#
- 2.Qe3#
- 1...Qd5
- 2.Qe3#
- 1...Qg2
- 2.Sf7#
- 2.Qe3#
- 1...Qf3
- 2.Sf7#
- 1...Qe4
- 2.Sf7#
- 1...Qc6
- 2.Sf7#
- 1...Qd8
- 2.Sf7#
- 2.Qe3#
- 1...Qe8
- 2.Qd2#
- 2.Qe3#
- 1...Qf8
- 2.Qd2#
- 2.Qe3#
- 1...Qg8
- 2.Qd2#
- 2.Qe3#
- 1...Bd3
- 2.Sf7#
- 2.Qd2#
- 1...Bc4
- 2.Qd2#
- 2.Qe3#
- 1...e4
- 2.Sf7#
- 2.Qf6#
- 2.Qe3#
- 1...Kg5!
- threat
- 1.e8Q?
- threat
- 2.Qe6#
- 2.g5#
- 2.g8S#
- 1...exf4
- 2.Qf6#
- 1...Qd5
- 2.g5#
- 1...Qg2
- 2.Qe6#
- 2.g8S#
- 1...Qe4
- 2.g5#
- 2.g8S#
- 1...Qc6
- 2.Qexc6#
- 2.Qcxc6#
- 2.g5#
- 2.g8S#
- 1...Qc8
- 2.g5#
- 2.g8S#
- 1...Qd8
- 2.g8S#
- 1...Bd3
- 2.g5#
- 2.g8S#
- 1...Bc4
- 2.g5#
- 1...Qxe8!
- threat
- 1.e8B?
- threat
- 2.g5#
- 2.g8S#
- 1...exf4
- 2.Qf6#
- 1...Qd5
- 2.g5#
- 1...Qg2
- 2.g8S#
- 1...Qd8
- 2.g8S#
- 1...Bc4
- 2.g5#
- 1...Qxe8!
- threat
- 1.g8Q?
- threat
- 2.Sf7#
- 2.Qe6#
- 2.Qg5#
- 2.Qg7#
- 1...exf4
- 2.Sf7#
- 2.Qf6#
- 2.Qcg7#
- 2.Qgg7#
- 1...Qd5
- 2.Qg5#
- 2.Qg7#
- 2.Qf8#
- 1...Qe4
- 2.Sf7#
- 2.Qg5#
- 2.Qg7#
- 2.Qf8#
- 1...Qc6
- 2.Sf7#
- 2.Qxc6#
- 2.Qg5#
- 2.Qg7#
- 2.Qf8#
- 1...Qc8
- 2.Sf7#
- 2.Qg5#
- 2.Qg7#
- 1...Qe8
- 2.Qg5#
- 2.Qg7#
- 1...Qf8
- 2.Qg5#
- 2.Qxf8#
- 2.exf8Q#
- 2.exf8B#
- 1...Bd3
- 2.Sf7#
- 2.Qg5#
- 2.Qg7#
- 1...Bc4
- 2.Qg5#
- 2.Qg7#
- 1...Qxg8!
- threat
- 1.Qxe5?
- Keys
- 1.Qf3!
- threat
- 2.g5#
- 1...Qc6+
- 2.Qxc6#
- 1...Qxf3
- 2.g8S#
- 1...Qxh8
- 2.Qc6#
- 1...exf4
- 2.Qxf4#
- threat
- 1.Qf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- Q(g);N_GUARD::P=S
- Q(g);N_GUARD::QAR(B)
- Q(g);OGATE::PXQ(g)=Q
- Q(g);N_GUARD,XS(H)::QAR(B)
- P(b);OGATE,XP(C)::QAR2(B)
- P(b);OGATE::QAR2(B)
- Tries
- Try
- Q(B);XP(b)
- Threat
- DUALS(3)
- Vars
- Q(g);::QAR2(B)
- Q(g);::QAB1(B)
- B(a);::QAB1(B)
- Refutation
- Q(g);CHECK
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(g);XS(H)::QAB(B)+P(C)
- P(b);OGATE,P_SPINP(b),XP(C)::QAB(B),XP(b)
- Q(g);N_GUARD::P=S
- P(b);::QAB(B)+P(C)
- Refutation
- Q(g);CHECK
- Try
- P(C);
- Threat
- DUALS(3)
- Vars
- Q(g);::QAB(B)
- Q(g);::S(H)
- Q(g);P_PINQ(B)::S(H)
- Refutation
- K(c);S_FLIGHT
- Try
- P(F);
- Threat
- DUALS(3)
- Vars
- P(b);OGATE,XP(C)::QAR2(B)
- Q(g);::P(D)
- Q(g);::P=S
- B(a);::P(D)
- Refutation
- Q(g);XQ(F)
- Try
- P(F);
- Threat
- DUALS(2)
- Vars
- P(b);OGATE,XP(C)::QAR2(B)
- Q(g);::P(D)
- Q(g);::P=S
- B(a);::P(D)
- Refutation
- Q(g);XB(F)
- Try
- P(G);
- Threat
- DUALS(4)
- Refutation
- Q(g);XQ(G)
- Try
- Actual
- Q(B);
- Threat
- P(D)
- Vars
- Q(g);CHECK,N_GUARD::QAR(B),XQ(g)
- Q(g);N_GUARD,XQ(B)::P=S
- Q(g);N_GUARD,XS(H)::QAR(B)
- P(b);OGATE,XP(C)::QAB(B),XP(b)
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).