MESON Chess Problem Database
Problem Display
PID: 205617 (K7/B4n2/2p1pP2/2nkp3/R1bPNP2/p7/NQ1q4/3R3B w - - 0 1)
Salai, Ladislav
Variantim, 1999
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Sb4#
- 1...Qc3
- 2.Saxc3#
- 1...Qe3
- 2.Sb4#
- 1...Qb4
- 2.Sxb4#
- 1...Qxf4
- 2.Sac3#
- 2.Sb4#
- 1...Qxd1
- 2.Sb4#
- 1...Qc2
- 2.Sb4#
- 1...Qe2
- 2.Sac3#
- 2.Sb4#
- 1...Qf2
- 2.Sac3#
- 2.Sb4#
- 1...Qg2
- 2.Sac3#
- 1...Qh2
- 2.Sac3#
- 2.Sb4#
- 1...Qd3
- 2.Sb4#
- 1...Qxd4
- 2.Sac3#
- 2.Sb4#
- 1...Qc1
- Tries
- 1.Sac3+?
- 1...Kxd4
- 2.Qxd2#
- 1...Qxc3!
- 1...Kxd4
- 1.Sec3+?
- 1...Kxd4
- 2.Qxd2#
- 1...Kd6!
- 1...Kxd4
- 1.Rxd2?
- threat
- 2.Sac3#
- 2.Sb4#
- 1...Bxa2
- 2.dxc5#
- 1...Sxa4
- 2.Sb4#
- 1...Bf1
- 2.Sac3#
- 1...Be2
- 2.Sac3#
- 1...Bb3
- 2.Sac3#
- 2.dxc5#
- 1...Bd3
- 2.Sac3#
- 1...Bb5
- 2.Sac3#
- 1...Ba6
- 2.Sac3#
- 1...Sd3
- 2.Sac3#
- 1...Sa6
- 2.Sac3#
- 1...Sxe4!
- threat
- 1.Qxa3?
- threat
- 2.Qxc5#
- 1...Kxd4
- 2.Rxd2#
- 1...Sxa4
- 2.Sec3#
- 1...Sxe4
- 2.Qc5#
- 1...Qg2
- 2.Sac3#
- 1...Qb4
- 2.Sxb4#
- 1...Sb3
- 2.Sec3#
- 1...Sd3
- 2.Sec3#
- 1...Sa6
- 2.Sec3#
- 1...Sb7
- 2.Sec3#
- 1...Sd7
- 2.Sec3#
- 1...Qa5!
- threat
- 1.Qxd2?
- threat
- 2.Sac3#
- 2.Sb4#
- 1...Bxa2
- 2.dxc5#
- 1...Sxa4
- 2.Sb4#
- 1...Bf1
- 2.Sac3#
- 1...Be2
- 2.Sac3#
- 1...Bb3
- 2.Sac3#
- 2.dxc5#
- 1...Bd3
- 2.Sac3#
- 1...Bb5
- 2.Sac3#
- 1...Ba6
- 2.Sac3#
- 1...Sd3
- 2.Sac3#
- 1...Sa6
- 2.Sac3#
- 1...Sxe4!
- threat
- 1.dxc5?
- threat
- 2.Sb4#
- 1...Bxa2
- 2.Sc3#
- 2.Rxd2#
- 2.Qxa2#
- 2.Qxd2#
- 1...Bf1
- 2.Sac3#
- 2.Sec3#
- 1...Be2
- 2.Sac3#
- 2.Sec3#
- 1...Bb3
- 2.Sac3#
- 2.Sec3#
- 2.Rxd2#
- 2.Qxd2#
- 2.Qxb3#
- 1...Bd3
- 2.Sec3#
- 1...Bb5
- 2.Sac3#
- 2.Sec3#
- 1...Ba6
- 2.Sac3#
- 2.Sec3#
- 1...axb2!
- threat
- 1.dxe5?
- threat
- 2.Sb4#
- 2.Sxc5#
- 1...Qxd1
- 2.Sb4#
- 1...Bxa2
- 2.Sc3#
- 2.Sxc5#
- 1...Sxa4
- 2.Sb4#
- 2.Sxd2#
- 2.Sf2#
- 2.Sec3#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 1...Sxe4
- 2.Sc3#
- 2.Sb4#
- 1...Sxe5
- 2.Sb4#
- 2.Qxe5#
- 1...Bf1
- 2.Sac3#
- 2.Sec3#
- 1...Be2
- 2.Sac3#
- 2.Sec3#
- 1...Bb3
- 2.Sac3#
- 2.Sec3#
- 2.Sxc5#
- 1...Bd3
- 2.Sec3#
- 2.Rd4#
- 2.Qd4#
- 1...Bb5
- 2.Sac3#
- 2.Sec3#
- 2.Sxc5#
- 1...Ba6
- 2.Sac3#
- 2.Sec3#
- 2.Sxc5#
- 1...Sb3
- 2.Sac3#
- 2.Sb4#
- 2.Sxd2#
- 2.Sf2#
- 2.Sec3#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 1...Sd3
- 2.Sxd2#
- 2.Sf2#
- 2.Sec3#
- 2.Qd4#
- 1...Sa6
- 2.Sac3#
- 2.Sxd2#
- 2.Sf2#
- 2.Sec3#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 1...Sb7
- 2.Sac3#
- 2.Sb4#
- 2.Sxd2#
- 2.Sf2#
- 2.Sec3#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 1...Sd7
- 2.Sac3#
- 2.Sb4#
- 2.Sxd2#
- 2.Sf2#
- 2.Sec3#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 1...Sg5
- 2.Sb4#
- 1...Sd6
- 2.Sb4#
- 1...axb2!
- threat
- 1.Sac3+?
- Keys
- 1.Qb4!
- threat
- 2.Qxc5#
- 2.Qxc4#
- 1...Kxd4
- 2.Qxd2#
- 1...Qxb4
- 2.Sxb4#
- 1...Qxa2
- 2.Qxc5#
- 1...Bxa2
- 2.Qxc5#
- 1...Sxa4
- 2.Sec3#
- 1...Sxe4
- 2.Qc5#
- 1...Qg2
- 2.Sac3#
- 1...Qc1
- 2.Qxc5#
- 1...Qc3
- 2.Saxc3#
- 2.Qxc5#
- 1...Qc2
- 2.Qxc5#
- 1...Qe2
- 2.Sac3#
- 2.Qxc5#
- 1...Qd3
- 2.Qxc5#
- 1...Bf1
- 2.Qxc5#
- 1...Be2
- 2.Qxc5#
- 1...Bb3
- 2.Qxc5#
- 1...Bd3
- 2.Qxc5#
- 1...Bb5
- 2.Qxc5#
- 1...Ba6
- 2.Qxc5#
- 1...Sb3
- 2.Sec3#
- 2.Qxc4#
- 1...Sd3
- 2.Sec3#
- 2.Qxc4#
- 1...Sa6
- 2.Sec3#
- 2.Qxc4#
- 1...Sb7
- 2.Sec3#
- 2.Qxc4#
- 1...Sd7
- 2.Sec3#
- 2.Qxc4#
- 1...Sd6
- 2.Qxc5#
- threat
- 1.Qb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 12
- REMOVED MATES = 3
- Sets
- Q(a);N_GUARD::S(C)
- Q(a);N_GUARD::S(C),XQ(a)
- Q(a);N_GUARD,XR(A)::S(C)
- Tries
- Try
- S(C);CHECK
- Vars
- K(e);P-FLIGHT,P_SPINB(c),P_SPINQ(a),P_SPINS(d),XP(F)::QAR2(D),XQ(a)
- Refutation
- Q(a);XS(C)
- Try
- S(G);CHECK
- Vars
- K(e);P-FLIGHT,P_SPINB(c),P_SPINQ(a),P_SPINS(d),XP(F)::QAR2(D),XQ(a)
- Refutation
- K(e);P-FLIGHT
- Try
- R(A);XQ(a)
- Threat
- DUALS(2)
- Vars
- B(c);N_GUARD,XS(C)::R(A)+P(F),XS(d)
- S(d);XR(E)::S(C)
- B(c);::S(C)
- S(d);::S(C)
- Refutation
- S(d);P_SPINS(d),XS(G)
- Try
- Q(D);XP(b)
- Threat
- QAR1(D),XS(d)
- Vars
- K(e);OGATEB,P-FLIGHT,P_SPINB(c),P_SPINQ(a),P_SPINS(d),XP(F)::R(A),XQ(a)
- S(d);XR(E)::B(B)+S(G),DCHECK
- S(d);P_SPINS(d),XS(G)::QAR1(D)
- Q(a);N_GUARD::S(C)
- Q(a);N_GUARD::S(C),XQ(a)
- S(d);::B(B)+S(G),DCHECK
- Refutation
- Q(a);P_PINB(J)
- Try
- Q(D);XQ(a)
- Threat
- DUALS(2)
- Vars
- B(c);N_GUARD,XS(C)::QAR(D)+P(F),XS(d)
- S(d);XR(E)::S(C)
- B(c);::S(C)
- S(d);::S(C)
- Refutation
- S(d);P_SPINS(d),XS(G)
- Try
- P(F);P_PINQ(a),XS(d)
- Threat
- S(C)
- Vars
- B(c);N_SPINQ(a)::B(B)+S(G),DCHECK
- Refutation
- P(b);XQ(D)
- Try
- P(F);P_PINQ(a),XP(f)
- Threat
- DUALS(2)
- Vars
- Q(a);N_SPINQ(a),XR(A)::S(C)
- S(i);::S(C)
- Refutation
- P(b);XQ(D)
- Try
- Actual
- Q(D);
- Threat
- DUALS(2)
- Vars
- K(e);OGATEB,P-FLIGHT,P_SPINB(c),P_SPINQ(a),P_SPINS(d),XP(F)::QAR2(D),XQ(a)
- Q(a);XQ(D)::S(C),XQ(a)
- Q(a);XS(C)::QAR1(D),XS(d)
- B(c);XS(C)::QAR1(D),XS(d)
- S(d);XR(E)::B(B)+S(G),DCHECK
- S(d);P_SPINS(d),XS(G)::QAR1(D)
- Q(a);N_GUARD::S(C)
- Q(a);::QAR1(D),XS(d)
- B(c);::QAR1(D),XS(d)
- S(i);::QAR1(D),XS(d)
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