MESON Chess Problem Database
Problem Display
PID: 70745 (B4BN1/7p/p4p1P/r1ppkP1Q/q7/rp2PP2/pP2N3/K7 w - - 0 1)
Labai, Zoltan
Pat a Mat, 1999
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Qf4
- 2.exf4#
- 1...d4
- 2.f4#
- 1...Qf4
- Tries
- 1.Sxf6?
- 1...Qb5
- 2.Sg4#
- 1...Qc6
- 2.Sg4#
- 1...Qd7
- 2.Sg4#
- 2.Sxd7#
- 1...Qe8
- 2.Sg4#
- 1...Qb4
- 2.Sd7#
- 1...Qc4
- 2.Sd7#
- 1...Qd4
- 2.Sd7#
- 1...Qe4
- 2.Sd7#
- 1...Qf4
- 2.Sd7#
- 1...Qg4
- 2.Sxg4#
- 2.Sd7#
- 1...Qh4
- 2.Sd7#
- 1...Rb5
- 2.Sd7#
- 1...c4
- 2.Sg4#
- 1...d4
- 2.Sg4#
- 1...Kxf6!
- 1...Qb5
- 1.Se7?
- 1...Qb5
- 2.Qh2#
- 1...Qc6
- 2.Sxc6#
- 2.Qh2#
- 1...Qd7
- 2.Qh2#
- 1...Qe8
- 2.Qh2#
- 1...Qb4
- 2.Sc6#
- 1...Qc4
- 2.Sc6#
- 1...Qd4
- 2.Sc6#
- 1...Qe4
- 2.Sc6#
- 1...Qf4
- 2.Sc6#
- 1...Qg4
- 2.Sc6#
- 1...Qh4
- 2.Sc6#
- 1...Rb5
- 2.Sc6#
- 1...c4
- 2.Qh2#
- 1...d4
- 2.Qh2#
- 1...Kd6!
- 1...Qb5
- 1.Qf7?
- threat
- 2.Qxd5#
- 2.Qe6#
- 2.Qxf6#
- 1...Kxf5
- 2.Qxf6#
- 1...Qd7
- 2.Qxf6#
- 1...Qe8
- 2.Qxd5#
- 2.Qxf6#
- 1...Qc4
- 2.Qe6#
- 2.Qxf6#
- 1...Qd4
- 2.Qe6#
- 2.Qxf6#
- 1...Qe4
- 2.Qe6#
- 2.Qxf6#
- 1...Qh4
- 2.Qxd5#
- 2.Qe6#
- 1...c4
- 2.Qe6#
- 2.Qxf6#
- 1...d4
- 2.Qd5#
- 2.Qe6#
- 2.Qxf6#
- 1...Qc6!
- threat
- 1.Qh2+?
- 1...Qf4
- 2.Qxf4#
- 1...Kxf5!
- 1...Qf4
- 1.Qh4?
- threat
- 2.Qxf6#
- 1...Kxf5
- 2.Qxf6#
- 1...Qc6
- 2.Qf4#
- 1...Qxh4!
- threat
- 1.e4?
- threat
- 2.Qh2#
- 1...dxe4
- 2.f4#
- 1...Qxe4!
- threat
- 1.Sxf6?
- Keys
- 1.Sg3!
- 1...Qb5
- 2.f4#
- 1...Qc6
- 2.f4#
- 1...Qd7
- 2.f4#
- 1...Qe8
- 2.Qxe8#
- 2.f4#
- 1...Qb4
- 2.Qe8#
- 1...Qc4
- 2.Qe8#
- 1...Qd4
- 2.Qe8#
- 1...Qe4
- 2.Qe8#
- 1...Qf4
- 2.Qe8#
- 1...Qg4
- 2.Qe8#
- 1...Qh4
- 2.Qe8#
- 1...Rb5
- 2.Qe8#
- 1...c4
- 2.f4#
- 1...d4
- 2.f4#
- 1...Qb5
- 1.Sg3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 11
- REMOVED MATES = 0
- Sets
- Q(d);OGATE::P(D),XQ(d)
- P(g);S_CUTQ(d)::P(E)
- Tries
- Try
- S(K);XP(j)
- Vars
- Q(d);N_GUARD::S(K)
- Q(d);N_GUARD,P_PINP(B)::S(K)
- R(e);S_CUTQ(d)::S(K)
- P(f);S_CUTQ(d)::S(K)
- P(g);S_CUTQ(d)::S(K)
- Refutation
- K(h);S_FLIGHT,XS(K)
- Try
- S(K);
- Vars
- Q(d);N_GUARD::QAB(G)
- Q(d);N_GUARD::S(K)
- Q(d);N_GUARD,P_PINP(B)::S(K)
- R(e);S_CUTQ(d)::S(K)
- P(f);S_CUTQ(d)::QAB(G)
- P(g);S_CUTQ(d)::QAB(G)
- Refutation
- K(h);S_FLIGHT
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- K(h);P-FLIGHT,P_SPINP(j),XP(F)::QAR1(G),XP(j)
- Q(d);::QAB1(G),XP(j)
- Refutation
- Q(d);
- Try
- Q(G);CHECK
- Vars
- Q(d);N_GUARD,P_SPINQ(d)::QAB1(G),XQ(d)
- Refutation
- K(h);P-FLIGHT,XP(F)
- Try
- Q(G);
- Threat
- QAB1(G),XP(j)
- Vars
- K(h);P-FLIGHT,XP(F)::QAR1(G),XP(j)
- Q(d);N_GUARD::QAB1(G)
- Refutation
- Q(d);XQ(G)
- Try
- P(D);
- Threat
- QAB(G)
- Vars
- P(g);XP(D)::P(E)
- Refutation
- Q(d);XP(D)
- Try
- Actual
- S(C);
- Vars
- Q(d);N_GUARD::P(E)
- Q(d);N_GUARD::QAR(G)
- Q(d);N_GUARD,P_PINP(B)::QAR(G)
- R(e);S_CUTQ(d)::QAR(G)
- P(f);S_CUTQ(d)::P(E)
- P(g);S_CUTQ(d)::P(E)
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).