MESON Chess Problem Database
Problem Display
PID: 27877 (1nkNb3/2Pn1R2/4P3/Q3rN2/1qR5/6BK/8/4b3 w - - 0 1)
Maleika, Gerhard
The Problemist Supplement, 2001
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Qd2
- 2.Se7#
- 1...Qc3
- 2.Sd6#
- 2.Se7#
- 1...Qxa5
- 2.Sd6#
- 2.Se7#
- 1...Qd6
- 2.Sxd6#
- 1...Qe7
- 2.Sxe7#
- 1...Qb1
- 2.Sd6#
- 2.Se7#
- 1...Qb2
- 2.Sd6#
- 2.Se7#
- 1...Qb3
- 2.Sd6#
- 2.Se7#
- 1...Qa4
- 2.Sd6#
- 2.Se7#
- 1...Qxc4
- 2.Sd6#
- 2.Se7#
- 1...Qb5
- 2.Sd6#
- 2.Se7#
- 1...Qb6
- 2.Se7#
- 1...Qb7
- 2.Sd6#
- 2.Se7#
- 1...Re2
- 2.cxb8Q#
- 2.cxb8R#
- 1...Re3
- 2.cxb8Q#
- 2.cxb8R#
- 1...Re4
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rxa5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rb5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rc5
- 2.Sd6#
- 2.Se7#
- 1...Rd5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rxf5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rxe6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sc5
- 2.Sd6#
- 2.Se7#
- 1...Qd2
- Tries
- 1.Qxb4?
- threat
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Bxg3
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Bxf7
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sc6
- 2.Qb7#
- 1...Re2
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Re3
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Re4
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Ra5
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rb5
- 2.Sd6#
- 2.Se7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rc5
- 2.Se7#
- 2.Qb7#
- 1...Rd5
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Bd2
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Bf2
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Bc3
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sb6
- 2.Sd6#
- 2.Se7#
- 1...Sf6
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.Qxb8#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sf8
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.Qxb8#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sa6
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 1...Bxb4!
- threat
- 1.Qa6+?
- 1...Qb7
- 2.Sd6#
- 2.Se7#
- 2.Qxb7#
- 1...Sxa6!
- 1...Qb7
- 1.Qxb4?
- Keys
- 1.Qa8!
- threat
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qxc4
- 2.Qb7#
- 1...Rxf5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rxe6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Bxg3
- 2.cxb8Q#
- 2.cxb8R#
- 1...Bxf7
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qc5
- 2.Qb7#
- 1...Qa3
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qd2
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qc3
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qa5
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qd6
- 2.Sxd6#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qe7
- 2.Sxe7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qf8
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qb1
- 2.Sd6#
- 2.Se7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qb2
- 2.Sd6#
- 2.Se7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qb3
- 2.Sd6#
- 2.Se7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qa4
- 2.Sd6#
- 2.Se7#
- 2.Qb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qb5
- 2.Sd6#
- 2.Se7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qb6
- 2.Se7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Qb7
- 2.Sd6#
- 2.Se7#
- 2.Qxb7#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Re2
- 2.cxb8Q#
- 2.cxb8R#
- 1...Re3
- 2.cxb8Q#
- 2.cxb8R#
- 1...Re4
- 2.cxb8Q#
- 2.cxb8R#
- 1...Ra5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rb5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Rc5
- 2.Se7#
- 1...Rd5
- 2.cxb8Q#
- 2.cxb8R#
- 1...Bd2
- 2.cxb8Q#
- 2.cxb8R#
- 1...Bf2
- 2.cxb8Q#
- 2.cxb8R#
- 1...Bc3
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sc5
- 2.Sd6#
- 1...Sb6
- 2.Qb7#
- 2.Qxb8#
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sf6
- 2.cxb8Q#
- 2.cxb8R#
- 1...Sf8
- 2.cxb8Q#
- 2.cxb8R#
- threat
- 1.Qa8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- Q(b);N_GUARD::S(E)
- Q(b);N_GUARD::S(E),XQ(b)
- R(c);::PXS(e)=Q
- R(c);P_PINB(A)::PXS(e)=Q
- R(c);XQ(D)::PXS(e)=Q
- R(c);XS(E)::PXS(e)=Q
- R(c);XP(F)::PXS(e)=Q
- Tries
- Try
- Q(D);XQ(b)
- Threat
- DUALS(5)
- Vars
- S(e);::QAB1(D)
- Refutation
- B(a);XQ(D)
- Try
- Q(D);CHECK
- Refutation
- S(e);XQ(D)
- Try
- Actual
- Q(D);P_PINS(e)
- Threat
- PXS(e)=Q
- Vars
- Q(b);N_GUARD,XR(C)::QAB1(D)
- R(c);XS(E)::PXS(e)=Q
- R(c);XP(F)::PXS(e)=Q
- B(a);XB(A)::PXS(e)=Q
- B(g);XR(H)::PXS(e)=Q
- Q(b);N_GUARD::QAB1(D)
- R(c);::PXS(e)=Q
- R(c);P_PINB(A)::PXS(e)=Q
- R(c);S_CUTQ(b)::S(E)
- B(a);::PXS(e)=Q
- S(d);S_CUTQ(b)::S(E)
- S(d);::PXS(e)=Q
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