MESON Chess Problem Database
Problem Display
PID: 10375 (r4r1n/3B2pK/3p4/R1pkpR1p/1PpBpP2/2PN4/7q/3Q4 w - - 0 1)
Fleck, Ferenc
3rd Prize, BCF, 1964
#2
10 + 12
SOLUTION
- SOUND
- Sets
- 1...Qxf4
- 2.Sxf4#
- 1...cxd3
- 2.Qb3#
- 1...exd3
- 2.Qf3#
- 1...e3
- 2.Qf3#
- 1...Qxf4
- Tries
- 1.Sxc5?
- threat
- 2.Sa6#
- 2.Bf2#
- 1...Qxf4
- 2.Sa6#
- 2.Be3#
- 1...Rxa5
- 2.Bf2#
- 1...dxc5
- 2.Bf2#
- 1...Qg1
- 2.Sa6#
- 2.Bxg1#
- 1...Qg3
- 2.Sa6#
- 2.Be3#
- 1...Qh1
- 2.Sa6#
- 2.Bg1#
- 1...Qb2
- 2.Sa6#
- 1...Qc2
- 2.Sa6#
- 1...Qd2
- 2.Sa6#
- 1...Qe2
- 2.Sa6#
- 1...Qf2
- 2.Sa6#
- 2.Bxf2#
- 1...Qh3
- 2.Sa6#
- 2.Be3#
- 1...Ra6
- 2.Sxa6#
- 2.Bf2#
- 1...Rab8
- 2.Sb7#
- 2.Bf2#
- 1...Rac8
- 2.Bf2#
- 1...Rfb8
- 2.Bf2#
- 1...Rfc8
- 2.Bf2#
- 1...e3
- 2.Qf3#
- 1...Qa2!
- threat
- 1.Bxc5?
- threat
- 2.Sf2#
- 2.Ba7#
- 1...Qxf4
- 2.Sxf4#
- 2.Ba7#
- 1...Rxa5
- 2.Sf2#
- 1...cxd3
- 2.Qb3#
- 1...exd3
- 2.Qf3#
- 1...dxc5
- 2.Sf2#
- 1...e3
- 2.Sf2#
- 2.Qf3#
- 1...Qa2
- 2.Sb2#
- 1...Qg3
- 2.Ba7#
- 1...Qh1
- 2.Se1#
- 2.Ba7#
- 1...Qb2
- 2.Sxb2#
- 2.Ba7#
- 1...Qc2
- 2.Ba7#
- 1...Qd2
- 2.Ba7#
- 1...Qe2
- 2.Ba7#
- 1...Qf2
- 2.Sxf2#
- 1...Qh3
- 2.Ba7#
- 1...Ra6
- 2.Sf2#
- 1...Ra7
- 2.Sf2#
- 2.Bxa7#
- 1...Rab8
- 2.Sf2#
- 2.Bb6#
- 1...Rac8
- 2.Sf2#
- 1...Rfb8
- 2.Sf2#
- 1...Rfc8
- 2.Sf2#
- 1...Qg1!
- threat
- 1.Bxe5?
- threat
- 2.Sf2#
- 2.Bf6#
- 1...Qxf4
- 2.Sxf4#
- 1...Rxf5
- 2.Sf2#
- 1...cxd3
- 2.Qb3#
- 1...exd3
- 2.Qf3#
- 1...dxe5
- 2.Sf2#
- 1...e3
- 2.Sf2#
- 2.Qf3#
- 1...Qa2
- 2.Sb2#
- 2.Bf6#
- 1...Qg1
- 2.Bf6#
- 1...Qg3
- 2.Bf6#
- 1...Qh1
- 2.Se1#
- 2.Bf6#
- 1...Qb2
- 2.Sxb2#
- 2.Bf6#
- 1...Qc2
- 2.Bf6#
- 1...Qd2
- 2.Bf6#
- 1...Qe2
- 2.Bf6#
- 1...Qf2
- 2.Sxf2#
- 2.Bf6#
- 1...Rae8
- 2.Sf2#
- 1...Rf6
- 2.Sf2#
- 2.Bxf6#
- 1...Rfe8
- 2.Sf2#
- 1...Sg6
- 2.Sf2#
- 1...Sf7
- 2.Sf2#
- 1...g6
- 2.Sf2#
- 1...Qh3!
- threat
- 1.Sxc5?
- Keys
- 1.Sxe5!
- threat
- 2.Sf7#
- 2.Bf2#
- 1...Qxf4
- 2.Be3#
- 1...Rxf5
- 2.Bf2#
- 1...dxe5
- 2.Bf2#
- 1...e3
- 2.Qf3#
- 1...Qa2
- 2.Sf7#
- 1...Qg1
- 2.Sf7#
- 2.Bxg1#
- 1...Qg3
- 2.Sf7#
- 2.Be3#
- 1...Qh1
- 2.Sf7#
- 2.Bg1#
- 1...Qb2
- 2.Sf7#
- 1...Qc2
- 2.Sf7#
- 1...Qd2
- 2.Sf7#
- 1...Qe2
- 2.Sf7#
- 1...Qf2
- 2.Sf7#
- 2.Bxf2#
- 1...Qh3
- 2.Be3#
- 1...Rae8
- 2.Bf2#
- 1...Rf6
- 2.Bf2#
- 1...Rf7
- 2.Sxf7#
- 2.Bf2#
- 1...Rfe8
- 2.Bf2#
- 1...Sg6
- 2.Bf2#
- 1...Sf7
- 2.Sxf7#
- 2.Bf2#
- 1...g6
- 2.Bf2#
- threat
- 1.Sxe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 13
- REMOVED MATES = 2
- Sets
- Q(a);XP(F)::S(C),XQ(a)
- P(b);OGATEB,XS(C)::QAB(A)
- P(c);OGATEB,XS(C)::QAB(A)
- P(c);OGATEB::QAB(A)
- Tries
- Try
- S(C);P_PINP(f),XP(d)
- Threat
- DUALS(2)
- Vars
- R(j);XR(G)::QAR(A)+B(E)
- P(h);N_SPINP(f),P_SPINP(h),XS(C)::QAR(A)+B(E)
- Q(a);::R(G)+S(C)
- R(j);::QAR(A)+B(E)
- R(k);::QAR(A)+B(E)
- P(c);OGATEB::QAB(A)
- Refutation
- Q(a);
- Try
- B(E);P_PINP(f),XP(d)
- Threat
- DUALS(2)
- Vars
- R(j);XR(G)::QAR(A)+S(C)
- P(b);N_SPINP(f),OGATEB,P_SPINP(b),XS(C)::QAB(A)
- P(c);N_SPINP(f),OGATEB,P_SPINP(c),XS(C)::QAB(A)
- P(h);N_SPINP(f),P_SPINP(h),XB(E)::QAR(A)+S(C)
- Q(a);N_GUARD::QAR(A)+S(C)
- Q(a);::R(G)+B(E)
- Q(a);::QAR(A)+S(C),XQ(a)
- R(j);::QAR(A)+S(C)
- R(k);::QAR(A)+S(C)
- Refutation
- Q(a);
- Try
- B(E);XP(f)
- Threat
- DUALS(2)
- Vars
- Q(a);XP(F)::QAR(A)+S(C),DCHECK,XQ(a)
- R(k);XR(H)::QAR(A)+S(C)
- P(b);N_SPINP(d),OGATEB,P_SPINP(b),XS(C)::QAB(A)
- P(c);N_SPINP(d),OGATEB,P_SPINP(c),XS(C)::QAB(A)
- P(h);XB(E)::QAR(A)+S(C)
- Q(a);::R(H)+B(E)
- R(j);::QAR(A)+S(C)
- R(k);::QAR(A)+S(C)
- S(l);::QAR(A)+S(C)
- P(i);::QAR(A)+S(C)
- Refutation
- Q(a);
- Try
- Actual
- S(C);XP(f)
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XP(F)::QAR(A)+B(E)
- R(k);XR(H)::QAR(A)+B(E)
- P(h);XS(C)::QAR(A)+B(E)
- P(c);OGATEB::QAB(A)
- Q(a);::R(H)+S(C)
- Q(a);N_GUARD::QAR(A)+B(E)
- R(j);::QAR(A)+B(E)
- R(k);::QAR(A)+B(E)
- S(l);::QAR(A)+B(E)
- P(i);::QAR(A)+B(E)
Developed and maintained by Brian Stephenson.
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