MESON Chess Problem Database
Problem Display
PID: 67803 (Kn6/p1Q5/pB2p3/rN1kpp2/1R2nP2/8/q5r1/7B w - - 0 1)
Maleika, Gerhard
3rd Comm., Phenix, 1994
#2
7 + 11
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Qc4#
- 1...Qc4
- 2.Qxc4#
- 1...Qa1
- 2.Qc4#
- 1...Qb2
- 2.Qc4#
- 1...Qd2
- 2.Qc4#
- 1...Qf2
- 2.Qc4#
- 1...Qa3
- 2.Qc4#
- 1...Qa4
- 2.Qc4#
- 1...Rg1
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Rb2
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Rc2
- 2.Qd6#
- 1...Rd2
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Re2
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Rf2
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Rh2
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Rg3
- 2.Qd6#
- 2.Qc5#
- 1...Rg4
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Rg5
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Rg6
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Rg7
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Rg8
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Sd2
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Sf2
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Sc3
- 2.Sxc3#
- 2.Qd6#
- 2.Qc5#
- 1...Sg3
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Sc5
- 2.Sc3#
- 2.Qd6#
- 2.Qxc5#
- 1...Sg5
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Sd6
- 2.Sc3#
- 2.Qxd6#
- 2.Qc5#
- 1...Sf6
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Sd7
- 2.Qb7#
- 1...exf4
- 2.Rd4#
- 1...Qb1
- Tries
- 1.Bxg2?
- threat
- 2.Sc3#
- 2.Qd6#
- 2.Qc5#
- 1...Qxg2
- 2.Qc4#
- 1...axb5
- 2.Qc5#
- 1...axb6
- 2.Sc3#
- 2.Qd6#
- 1...Qb3
- 2.Qd6#
- 2.Qc5#
- 1...Qc4
- 2.Qd6#
- 2.Qxc4#
- 1...Qa1
- 2.Qd6#
- 2.Qc4#
- 2.Qc5#
- 1...Qb2
- 2.Qd6#
- 2.Qc4#
- 2.Qc5#
- 1...Qc2
- 2.Qd6#
- 1...Qd2
- 2.Qd6#
- 2.Qc4#
- 2.Qc5#
- 1...Qf2
- 2.Sc3#
- 2.Qd6#
- 2.Qc4#
- 1...Qa3
- 2.Qd6#
- 2.Qc4#
- 2.Qc5#
- 1...Ra3
- 2.Qd6#
- 2.Qc5#
- 1...Sc6
- 2.Sc3#
- 2.Qd6#
- 2.Qd7#
- 1...Sd7
- 2.Sc3#
- 2.Qd6#
- 2.Qb7#
- 2.Qxd7#
- 1...Rxb5!
- threat
- 1.Rxe4?
- threat
- 2.Sc3#
- 2.Rxe5#
- 1...Rxb5
- 2.Rxe5#
- 1...exf4
- 2.Sc3#
- 2.Rd4#
- 2.Re5#
- 1...fxe4
- 2.Sc3#
- 2.Qc5#
- 1...axb5
- 2.Rxe5#
- 1...Qb3
- 2.Rxe5#
- 1...Qc4
- 2.Rxe5#
- 2.Qxc4#
- 1...Qa1
- 2.Qc4#
- 1...Qb2
- 2.Qc4#
- 1...Qc2
- 2.Rxe5#
- 1...Qd2
- 2.Rxe5#
- 2.Qc4#
- 1...Qe2
- 2.Sc3#
- 1...Qa3
- 2.Rxe5#
- 2.Qc4#
- 1...Rc2
- 2.Rd4#
- 2.Rxe5#
- 2.Qd6#
- 1...Rg3
- 2.Rd4#
- 2.Rxe5#
- 2.Qd6#
- 2.Qc5#
- 1...Ra3
- 2.Rxe5#
- 1...Sc6
- 2.Sc3#
- 1...Sd7
- 2.Sc3#
- 2.Qb7#
- 1...Kxe4!
- threat
- 1.Qd8+?
- 1...Kc6
- 2.Sxa7#
- 1...Sd6
- 2.Qxd6#
- 1...Sd7!
- 1...Kc6
- 1.Qd7+?
- 1...Sd6
- 2.Sc3#
- 2.Sc7#
- 2.Qxd6#
- 1...Sxd7!
- 1...Sd6
- 1.Bxg2?
- Keys
- 1.Kb7!
- threat
- 2.Qxe5#
- 1...Sc5+
- 2.Qxc5#
- 1...Sd6+
- 2.Qxd6#
- 1...exf4
- 2.Rd4#
- 1...Qa1
- 2.Qc4#
- 1...Qb2
- 2.Qc4#
- 1...Rg7
- 2.Sc3#
- 1...Sc6
- 2.Qxc6#
- 1...Sd7
- 2.Qc6#
- threat
- 1.Kb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- Q(a);N_GUARD::QAB1(F)
- Q(a);N_GUARD::QAB1(F),XQ(a)
- R(b);P_SPINS(c)::QAR1(F)
- S(k);N_GUARD::QAB(F)
- P(f);N_GUARD,XP(C)::R1(B)
- Tries
- Try
- B(A);P_PINS(c),XR(b)
- Threat
- DUALS(3)
- Vars
- Q(a);N_GUARD,N_SPINS(c),XB(A)::QAB1(F)
- P(h);XS(D)::QAR1(F)
- Q(a);::QAR1(F)
- Refutation
- R(d);XS(D)
- Try
- R(B);XS(c)
- Threat
- DUALS(2)
- Vars
- R(d);XS(D)::R1(B),XP(f)
- P(h);XS(D)::R1(B),XP(f)
- Q(a);::R1(B),XP(f)
- Q(a);N_GUARD::QAB1(F)
- Q(a);::S(D)
- R(d);::R1(B),XP(f)
- S(k);::S(D)
- Refutation
- K(e);P_SPINR(b),S_FLIGHT,XR(B)
- Try
- Q(F);CHECK
- Vars
- K(e);S_FLIGHT::S(D),XP(j)
- S(c);N_GUARD,P_SPINR(b),P_SPINS(c)::QAR1(F),XS(c)
- Refutation
- S(k);P_SPINS(k)
- Try
- Q(F);CHECK
- Refutation
- S(k);XQ(F)
- Try
- Actual
- K(G);S_FLIGHT
- Threat
- QAR1(F),XP(f)
- Vars
- S(c);CHECK,N_GUARD,P_SPINR(b)::QAR1(F),XS(c)
- P(f);N_GUARD,XP(C)::R1(B)
- Q(a);N_GUARD::QAB1(F)
- R(b);P_PINQ(F),P_SPINS(c)::S(D)
- S(k);N_GUARD::QAB1(F),XS(k)
- S(k);N_GUARD::QAB1(F)
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