MESON Chess Problem Database
Problem Display
PID: 18468 (3n4/2pP3r/2p1k1pP/2B3P1/3P2N1/3p2NQ/q3b2K/4RR1B w - - 0 1)
Burger, Robert Eugene
1st Prize, American Chess Bulletin TT, 1956-1957
#2
12 + 9
| 268 | Chess Life | 1961 |
| 3976 | FIDE Album (1956-1958) | 1961 |
SOLUTION
- SOUND
- Sets
- 1...Kxd7
- 2.Sf6#
- 1...Rxh6
- 2.Sxh6#
- 1...Rxd7
- 2.Rf6#
- 1...Rf7
- 2.Sf6#
- 1...Sf7
- 2.Sf2#
- 2.Sf6#
- 1...Kxd7
- Tries
- 1.Kg1?
- threat
- 2.Sh2#
- 1...Kxd7
- 2.Sf6#
- 1...Rxh6
- 2.Sxh6#
- 1...Rf7
- 2.Sf6#
- 1...Qd5!
- threat
- 1.Sxe2?
- threat
- 2.Se3#
- 2.Se5#
- 1...Kxd7
- 2.Sf6#
- 1...Rxh6
- 2.Sxh6#
- 1...Qd5
- 2.Se5#
- 1...Rf7
- 2.Sf6#
- 1...Qxe2+!
- threat
- 1.Bxc6?
- threat
- 2.Rf6#
- 1...Rf7
- 2.Sf6#
- 1...Sxc6!
- threat
- 1.Rxe2+?
- 1...Kxd7
- 2.Sf6#
- 1...dxe2
- 2.Se3#
- 2.Se5#
- 1...Qxe2+!
- 1...Kxd7
- 1.Rf3?
- threat
- 2.Se3#
- 1...Kd5
- 2.Se3#
- 1...Kxd7
- 2.Sf6#
- 1...Qd5
- 2.Se5#
- 1...Rf7
- 2.Sf6#
- 1...Rxh6!
- threat
- 1.Rf4?
- threat
- 2.Sf2#
- 1...Kxd7
- 2.Sf6#
- 1...Rxh6
- 2.Sxh6#
- 1...Rf7
- 2.Sf6#
- 1...Qd5!
- threat
- 1.Rf8?
- threat
- 2.Sf2#
- 2.Sf6#
- 1...Kxd7
- 2.Se5#
- 2.Sf6#
- 1...Rxh6
- 2.Sxh6#
- 1...Rf7
- 2.Sf6#
- 1...Qd5!
- threat
- 1.Kg1?
- Keys
- 1.Bf3!
- threat
- 2.Se5#
- 1...Kxd7
- 2.Sf6#
- 1...Kf7
- 2.Bd5#
- 1...Rxh6
- 2.Sxh6#
- 1...Rf7
- 2.Sf6#
- threat
- 1.Bf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(e);N_SPINB(b),S_FLIGHT,XP(L)::QAB(F)+S(H),DCHECK
- R(h);P_PINQ(F),XP(K)::QAB(F)+S(H),XR(h)
- R(h);SBLOCK,XP(L)::R1(B)
- R(h);SBLOCK::QAB(F)+S(H)
- Tries
- Try
- K(D);S_FLIGHT
- Threat
- QAB(F)+S(H)
- Vars
- K(e);N_SPINB(b),S_FLIGHT,XP(L)::QAB(F)+S(H),DCHECK
- R(h);XP(K)::QAB(F)+S(H),XR(h)
- R(h);SBLOCK::QAB(F)+S(H)
- Refutation
- Q(a);
- Try
- S(E);P_SPINS(E),XB(b)
- Threat
- DUALS(2)
- Vars
- K(e);S_FLIGHT,XP(L)::QAB(F)+S(H),DCHECK
- R(h);P_PINQ(F),XP(K)::QAB(F)+S(H),XR(h)
- Q(a);N_PINS(E)::QAB(F)+S(H)
- R(h);SBLOCK::QAB(F)+S(H)
- Refutation
- Q(a);CHECK,P_SPINQ(a),XS(E)
- Try
- B(C);XP(d)
- Threat
- R1(B)
- Vars
- R(h);SBLOCK::QAB(F)+S(H)
- Refutation
- S(i);XB(C)
- Try
- R(A);CHECK,P_SPINR(A),XB(b)
- Vars
- K(e);S_FLIGHT,XP(L)::QAB(F)+S(H),DCHECK
- Refutation
- Q(a);CHECK,XR(A)
- Try
- R(B);
- Threat
- QAB(F)+S(H)
- Vars
- K(e);N_SPINB(b),S_FLIGHT::S(H)
- K(e);N_SPINB(b),S_FLIGHT,XP(L)::QAB(F)+S(H),DCHECK
- Q(a);SBLOCK::QAB(F)+S(H)
- R(h);SBLOCK::QAB(F)+S(H)
- Refutation
- R(h);P_PINQ(F),XP(K)
- Try
- R(B);
- Threat
- QAB(F)+S(H)
- Vars
- K(e);N_SPINB(b),S_FLIGHT,XP(L)::QAB(F)+S(H),DCHECK
- R(h);P_PINQ(F),XP(K)::QAB(F)+S(H),XR(h)
- R(h);SBLOCK::QAB(F)+S(H)
- Refutation
- Q(a);
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- R(h);P_PINQ(F),XP(K)::QAB(F)+S(H),XR(h)
- R(h);::QAB(F)+S(H)
- Refutation
- Q(a);
- Try
- Actual
- B(C);
- Threat
- QAB(F)+S(H)
- Vars
- K(e);N_SPINB(b),S_FLIGHT,XP(L)::QAB(F)+S(H),DCHECK
- K(e);N_SPINB(b),S_FLIGHT::R(B)+B(C),DCHECK
- R(h);P_PINQ(F),XP(K)::QAB(F)+S(H),XR(h)
- R(h);SBLOCK::QAB(F)+S(H)
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