MESON Chess Problem Database
Problem Display
PID: 12396 (8/1B2p1N1/1qp1R3/3k2n1/rr1P1pP1/B2Q4/3N4/2RK4 w - - 0 1)
Lender, Baruch
4th HM., The Problemist, 1978/II
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Qxd4
- 2.Bxc6#
- 1...Qa5
- 2.Bxc6#
- 1...Qc5
- 2.Rxc5#
- 1...Qa7
- 2.Bxc6#
- 1...Qc7
- 2.Rc5#
- 1...Qd8
- 2.Bxc6#
- 2.Rc5#
- 1...Qa6
- 2.Rc5#
- 1...Qxb7
- 2.Rc5#
- 1...Rb1
- 2.Re5#
- 1...Rb2
- 2.Re5#
- 1...Rb3
- 2.Re5#
- 1...Rc4
- 2.Re5#
- 1...Rxd4
- 2.Qf5#
- 1...Rb5
- 2.Re5#
- 1...Sf3
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sf7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...Qxd4
- Tries
- 1.Sf3?
- threat
- 2.Qf5#
- 1...Qxd4
- 2.Bxc6#
- 1...Rxd4
- 2.Re5#
- 1...Sxf3
- 2.Qe4#
- 1...Qc7
- 2.Rc5#
- 1...Se4
- 2.Qxe4#
- 1...Sf7
- 2.Qe4#
- 1...Sxe6!
- threat
- 1.Se4?
- threat
- 2.Sc3#
- 2.Re5#
- 1...Qxd4
- 2.Bxc6#
- 2.Rc5#
- 1...Rxa3
- 2.Re5#
- 1...Rxd4
- 2.Sc3#
- 1...Sxe4
- 2.Qxe4#
- 1...Qc5
- 2.Rxc5#
- 2.Re5#
- 1...Qc7
- 2.Sc3#
- 2.Rc5#
- 1...Rb3
- 2.Re5#
- 1...Rc4
- 2.Re5#
- 1...Sf3
- 2.Sc3#
- 1...Sf7
- 2.Sc3#
- 1...Sxe6!
- threat
- 1.Bxb4?
- threat
- 2.Re5#
- 2.Qc4#
- 1...Qxd4
- 2.Bxc6#
- 2.Rc5#
- 1...Qxb4
- 2.Bxc6#
- 1...Sxe6
- 2.Qc4#
- 2.Qe4#
- 1...Qc5
- 2.Rxc5#
- 2.dxc5#
- 1...Qc7
- 2.Rc5#
- 2.Qc4#
- 1...Qb5
- 2.Re5#
- 1...Qa6
- 2.Rc5#
- 2.Re5#
- 1...Sf3
- 2.Qc4#
- 2.Qe4#
- 1...Sf7
- 2.Qc4#
- 2.Qe4#
- 1...Rxb4!
- threat
- 1.Qe3?
- threat
- 2.Qe5#
- 1...Qxd4
- 2.Bxc6#
- 1...Qc7
- 2.Rc5#
- 1...Sf3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sf7
- 2.Qe4#
- 1...fxe3!
- threat
- 1.Qf3+?
- 1...Kxd4
- 2.Sf5#
- 1...Se4
- 2.Qxe4#
- 1...Sxf3!
- 1...Kxd4
- 1.Sf3?
- Keys
- 1.Se8!
- threat
- 2.Re5#
- 1...Kxe6
- 2.Qf5#
- 1...Qxd4
- 2.Sc7#
- 1...Rxd4
- 2.Qf5#
- 1...Sxe6
- 2.Qe4#
- 1...Qc7
- 2.Sxc7#
- 1...Sf3
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- threat
- 1.Se8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 13
- Sets
- Q(f);N_GUARD,P_SPINQ(f),XP(F)::B(I),XP(g)
- Q(f);N_GUARD::B(I),XP(g)
- Q(f);N_GUARD::R1(A),XQ(f)
- Q(f);N_GUARD::R1(A)
- Q(f);N_GUARD,N_SPINP(g),XB(I)::R1(A)
- R(b);P_PINR(A)::R1(H)
- R(b);::R1(H)
- R(b);P_SPINR(b),SBLOCK,XP(F)::QAR2(E)
- S(e);N_GUARD::QAB1(E)
- S(e);N_GUARD::QAB1(E),XS(e)
- Tries
- Try
- S(C);
- Threat
- QAR2(E)
- Vars
- Q(f);N_GUARD,P_PINQ(E),P_SPINQ(f),XP(F)::B(I),XP(g)
- R(b);P_PINQ(E),P_SPINR(b),XP(F)::R1(H)
- S(e);N_GUARD,XS(C)::QAB1(E)
- Q(f);N_GUARD::R1(A)
- S(e);N_GUARD::QAB1(E),XS(e)
- S(e);N_GUARD::QAB1(E)
- Refutation
- S(e);XR(H)
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(a);XB(D)::R1(H)
- R(b);P_PINQ(E),P_SPINR(b),XP(F)::S(C)
- S(e);OGATE,XS(C)::QAB1(E),XS(e)
- R(b);::R1(H)
- S(e);::S(C)
- Refutation
- S(e);XR(H)
- Try
- B(D);XR(b)
- Threat
- DUALS(2)
- Vars
- Q(f);N_GUARD,XB(D)::B(I),XP(g)
- Q(f);::R1(H)
- Refutation
- R(a);XB(D)
- Try
- Q(E);
- Threat
- QAR1(E)
- Vars
- Q(f);N_GUARD,P_PINS(C),XP(F)::B(I),XP(g)
- Q(f);N_GUARD::R1(A)
- S(e);N_GUARD::QAB1(E)
- S(e);N_GUARD::QAB1(E),XS(e)
- Refutation
- P(c);XQ(E)
- Try
- Q(E);CHECK
- Vars
- K(d);N_SPINP(g),P-FLIGHT,XP(F)::S(J)
- S(e);N_GUARD,P_SPINS(e)::QAB1(E),XS(e)
- Refutation
- S(e);XQ(E)
- Try
- Actual
- S(J);
- Threat
- R1(H)
- Vars
- K(d);N_SPINP(g),S_FLIGHT,XR(H)::QAB1(E)
- Q(f);N_GUARD,P_SPINQ(f),XP(F)::S(J)
- R(b);P_SPINR(b),SBLOCK,XP(F)::QAR2(E)
- S(e);N_GUARD,XR(H)::QAB1(E)
- Q(f);N_GUARD::S(J),XQ(f)
- S(e);N_GUARD::QAB1(E)
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