MESON Chess Problem Database
Problem Display
PID: 45272 (1b1N4/5ppB/1n4N1/R1Q1Pk1q/4p2P/7P/K1pRP1p1/2B5 w - - 0 1)
Petite, Efren
Probleemblad, 2002
#2
12 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxg6
- 2.Qf2#
- 1...Bxe5
- 2.Qxe5#
- 1...Sa4
- 2.Qc8#
- 1...Sc4
- 2.Qc8#
- 1...Sd5
- 2.Qc8#
- 1...Sa8
- 2.Qc8#
- 1...Sc8
- 2.Qxc8#
- 1...e3
- 2.Qxc2#
- 1...fxg6
- 2.Qf8#
- 1...Qxg6
- Tries
- 1.Rxc2?
- threat
- 2.Se7#
- 1...Qxg6
- 2.Qf2#
- 1...Bxe5
- 2.Qxe5#
- 1...fxg6
- 2.Qf8#
- 1...Sd5
- 2.Qc8#
- 1...e3!
- threat
- 1.Rd3?
- threat
- 2.Se7#
- 1...Qxg6
- 2.Qf2#
- 1...Bxe5
- 2.Qxe5#
- 1...fxg6
- 2.Qf8#
- 1...Sd5
- 2.Qc8#
- 1...e3!
- threat
- 1.Rd4?
- threat
- 2.Se7#
- 1...Bxe5
- 2.Qxe5#
- 1...fxg6
- 2.Qf8#
- 1...Sd5
- 2.Qc8#
- 1...Qxg6!
- threat
- 1.Rd5?
- threat
- 2.Se7#
- 1...Qxg6
- 2.Qf2#
- 1...Sxd5
- 2.Qc8#
- 1...fxg6
- 2.Qf8#
- 1...e3
- 2.Qxc2#
- 1...Bxe5!
- threat
- 1.Rd6?
- threat
- 2.Se7#
- 1...Qxg6
- 2.Qf2#
- 1...e3
- 2.Qxc2#
- 1...Sd5
- 2.Qc8#
- 1...fxg6!
- threat
- 1.Rd7?
- threat
- 2.Se7#
- 2.Rxf7#
- 1...Qxg6
- 2.Rxf7#
- 2.Qf2#
- 1...Qxh4
- 2.Sxh4#
- 2.Se7#
- 1...Qxh7
- 2.Se7#
- 1...Bxe5
- 2.Rxf7#
- 2.Qxe5#
- 1...Sxd7
- 2.Se7#
- 1...fxg6
- 2.Rf7#
- 2.Qf8#
- 1...e3
- 2.Qxc2#
- 1...Qg5
- 2.Se7#
- 1...f6
- 2.Se7#
- 1...Sd5!
- threat
- 1.Qc8+?
- 1...Sd7
- 2.Qxd7#
- 1...Sxc8!
- 1...Sd7
- 1.e3?
- threat
- 2.Se7#
- 1...Qxg6
- 2.Rf2#
- 1...Bxe5
- 2.Qxe5#
- 1...fxg6
- 2.Qf8#
- 1...Sd5
- 2.Qc8#
- 1...Qxh4!
- threat
- 1.e6+?
- 1...Kf6
- 2.Qe7#
- 1...Be5
- 2.Qxe5#
- 1...Sd5!
- 1...Kf6
- 1.Rxc2?
- Keys
- 1.Rd1!
- threat
- 2.Se7#
- 1...Qxg6
- 2.Qf2#
- 1...Bxe5
- 2.Qxe5#
- 1...fxg6
- 2.Qf8#
- 1...e3
- 2.Qxc2#
- 1...Sd5
- 2.Qc8#
- threat
- 1.Rd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- Q(e);N_GUARD,P_SPINQ(e),XS(J)::QAR(H)
- B(i);OGATE,P_SPINB(i),XP(I)::QAR1(H),XB(i)
- S(f);N_GUARD::QAB(H)
- S(f);N_GUARD::QAB(H),XS(f)
- P(c);OGATEB::QAB(H),XP(a)
- P(g);OGATEB,P_SPINP(g),XS(J)::QAR(H)
- Tries
- Try
- R(C);XP(a)
- Threat
- B(K)+S(J),DCHECK
- Vars
- Q(e);N_GUARD,P_SPINQ(e),XS(J)::QAR(H)
- B(i);OGATE,P_SPINB(i),XP(I)::QAR1(H),XB(i)
- P(g);OGATEB,P_SPINP(g),XS(J)::QAR(H)
- S(f);N_GUARD::QAB(H)
- Refutation
- P(c);
- Try
- R(C);
- Threat
- B(K)+S(J),DCHECK
- Vars
- Q(e);N_GUARD,P_SPINQ(e),XS(J)::QAR(H)
- B(i);OGATE,P_SPINB(i),XP(I)::QAR1(H),XB(i)
- P(g);OGATEB,P_SPINP(g),XS(J)::QAR(H)
- S(f);N_GUARD::QAB(H)
- Refutation
- P(c);
- Try
- R(C);
- Threat
- B(K)+S(J),DCHECK
- Vars
- B(i);OGATE,P_SPINB(i),XP(I)::QAR1(H),XB(i)
- P(g);OGATEB,P_SPINP(g),XS(J)::QAR(H)
- S(f);N_GUARD::QAB(H)
- Refutation
- Q(e);P_SPINQ(e),XS(J)
- Try
- R(C);
- Threat
- B(K)+S(J),DCHECK
- Vars
- Q(e);N_GUARD,P_SPINQ(e),XS(J)::QAR(H)
- S(f);N_GUARD,XR(C)::QAB(H)
- P(g);OGATEB,P_SPINP(g),XS(J)::QAR(H)
- P(c);OGATEB::QAB(H),XP(a)
- Refutation
- B(i);P_SPINB(i),XP(I)
- Try
- R(C);
- Threat
- B(K)+S(J),DCHECK
- Vars
- Q(e);N_GUARD,P_SPINQ(e),XS(J)::QAR(H)
- P(c);OGATEB::QAB(H),XP(a)
- S(f);N_GUARD::QAB(H)
- Refutation
- P(g);P_SPINP(g),XS(J)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- Q(e);XB(K)::S(J)
- S(f);XR(C)::B(K)+S(J),DCHECK
- P(c);OGATEB::QAB(H),XP(a)
- Q(e);::B(K)+S(J),DCHECK
- P(g);::B(K)+S(J),DCHECK
- Refutation
- S(f);
- Try
- Q(H);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::QAB(H),XS(f)
- Refutation
- S(f);XQ(H)
- Try
- P(D);
- Threat
- B(K)+S(J),DCHECK
- Vars
- Q(e);N_GUARD,P_SPINQ(e),XS(J)::R(C)
- B(i);OGATE,P_SPINB(i),XP(I)::QAR1(H),XB(i)
- P(g);OGATEB,P_SPINP(g),XS(J)::QAR(H)
- S(f);N_GUARD::QAB(H)
- Refutation
- Q(e);XP(F)
- Try
- P(I);CHECK
- Vars
- K(d);P-FLIGHT::QAB1(H)
- B(i);N_GUARD,P_SPINB(i)::QAR1(H),XB(i)
- Refutation
- S(f);P_SPINS(f)
- Try
- Actual
- R(C);
- Threat
- B(K)+S(J),DCHECK
- Vars
- Q(e);N_GUARD,P_SPINQ(e),XS(J)::QAR(H)
- B(i);OGATE,P_SPINB(i),XP(I)::QAR1(H),XB(i)
- P(g);OGATEB,P_SPINP(g),XS(J)::QAR(H)
- P(c);OGATEB::QAB(H),XP(a)
- S(f);N_GUARD::QAB(H)
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).