MESON Chess Problem Database
Problem Display
PID: 133819 (3N3b/p1pR4/2B3p1/2k2qQr/KR6/p2p1p2/7B/4r3 w - - 0 1)
Abdurahmanovic, Fadil
The Problemist, 1975
#2
7 + 11
| 6490 | yacpdb | 2009 |
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Qd5
- 2.Rxd5#
- 1...Ra1
- 2.Qe7#
- 1...Rb1
- 2.Qe7#
- 1...Rc1
- 2.Qe7#
- 1...Rd1
- 2.Qe7#
- 1...Rf1
- 2.Qe7#
- 1...Rg1
- 2.Qe7#
- 1...Rh1
- 2.Qe7#
- 1...Re5
- 2.Qc1#
- 1...Re7
- 2.Qxe7#
- 1...Be5
- 2.Rd5#
- 1...Qd5
- Tries
- 1.Bg1+?
- 1...Rxg1
- 2.Qe7#
- 1...Re3
- 2.Qe7#
- 1...Bd4
- 2.Bxd4#
- 1...f2!
- 1...Rxg1
- 1.Bxc7?
- threat
- 2.Bd6#
- 1...Be5
- 2.Rd5#
- 1...Re6!
- threat
- 1.Bxf3?
- threat
- 2.Sb7#
- 2.Rxc7#
- 1...Rxh2
- 2.Sb7#
- 1...Qd5
- 2.Rxd5#
- 2.Rxc7#
- 1...Qe5
- 2.Se6#
- 2.Sb7#
- 1...Re5
- 2.Sb7#
- 2.Qc1#
- 1...Re6
- 2.Sxe6#
- 2.Sb7#
- 1...Re7
- 2.Sb7#
- 2.Qxe7#
- 1...Rh7
- 2.Sb7#
- 1...Be5
- 2.Sb7#
- 2.Rd5#
- 1...c6
- 2.Sb7#
- 2.Bd6#
- 1...Re4!
- threat
- 1.Be4?
- threat
- 2.Se6#
- 2.Sb7#
- 2.Rxc7#
- 2.Qe7#
- 1...Qxg5
- 2.Se6#
- 2.Sb7#
- 2.Rxc7#
- 1...Rxh2
- 2.Se6#
- 2.Sb7#
- 2.Qe7#
- 1...Rxg5
- 2.Sb7#
- 2.Rxc7#
- 1...Qd5
- 2.Rxd5#
- 2.Rxc7#
- 1...Qe5
- 2.Se6#
- 2.Sb7#
- 1...Rh7
- 2.Se6#
- 2.Sb7#
- 1...Be5
- 2.Sb7#
- 2.Rd5#
- 1...Bf6
- 2.Se6#
- 2.Sb7#
- 2.Rxc7#
- 1...c6
- 2.Se6#
- 2.Sb7#
- 2.Bd6#
- 2.Qe7#
- 1...Rxe4!
- threat
- 1.Bd5?
- threat
- 2.Sb7#
- 1...Qxd5
- 2.Rxd5#
- 2.Rxc7#
- 1...Qxd7+!
- threat
- 1.Qc1+?
- 1...Bc3
- 2.Qxc3#
- 1...Rxc1!
- 1...Bc3
- 1.Qe3+?
- 1...Bd4
- 2.Qxd4#
- 1...Rxe3!
- 1...Bd4
- 1.Bg1+?
- Keys
- 1.Rxc7!
- threat
- 2.Sb7#
- 2.Bxf3#
- 2.Be4#
- 2.Bb7#
- 2.Ba8#
- 1...Rxh2
- 2.Sb7#
- 1...Qe5
- 2.Sb7#
- 1...Re5
- 2.Sb7#
- 1...Be5
- 2.Sb7#
- 1...Rh7
- 2.Sb7#
- 1...Qd5
- 2.Sb7#
- 2.Bxd5#
- 2.Bb7#
- 2.Bd7#
- 2.Ba8#
- 2.Be8#
- 1...Re4
- 2.Sb7#
- 2.Bxe4#
- 2.Bb7#
- 2.Ba8#
- 1...Re6
- 2.Sxe6#
- 2.Sb7#
- 1...Re7
- 2.Sb7#
- 2.Qxe7#
- 1...f2
- 2.Sb7#
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Be4#
- 2.Bb7#
- 2.Ba8#
- threat
- 1.Rxc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- Q(f);N_GUARD::R1(F),XQ(f)
- R(a);N_GUARD::QAB(D)
- R(a);N_GUARD,N_SPINQ(f),S_CUTB(k)::QAR(D)
- R(a);N_GUARD::QAB(D),XR(a)
- B(k);N_SPINQ(f),S_CUTQ(f)::R1(F)
- Tries
- Try
- B(A);CHECK
- Vars
- R(a);XB(A)::QAB(D)
- R(a);P_SPINR(a)::QAB(D)
- B(k);N_GUARD,P_SPINB(k)::B(A),XB(k)
- Refutation
- P(d);P_SPINP(d)
- Try
- B(A);XP(j)
- Threat
- B(A)
- Vars
- B(k);N_SPINQ(f),S_CUTQ(f)::R1(F)
- Refutation
- R(a);
- Try
- B(E);XP(d)
- Threat
- DUALS(2)
- Vars
- R(g);XB(A)::S(G)
- R(g);::S(G)
- Refutation
- R(a);P_PINR(C)
- Try
- B(E);
- Threat
- DUALS(4)
- Refutation
- R(a);P_PINR(C),XB(E)
- Try
- B(E);N_PINQ(f)
- Threat
- S(G)
- Refutation
- Q(f);CHECK,XR(F)
- Try
- Q(D);CHECK,N_PINQ(f)
- Vars
- B(k);N_GUARD,P_SPINB(k)::QAR2(D),XB(k)
- Refutation
- R(a);XQ(D)
- Try
- Q(D);CHECK,N_PINQ(f)
- Vars
- B(k);N_GUARD,P_SPINB(k)::QAB1(D),XB(k)
- Refutation
- R(a);XQ(D)
- Try
- Actual
- R(F);XP(j)
- Threat
- DUALS(5)
- Vars
- R(g);XB(A)::S(G)
- Q(f);::S(G)
- R(a);N_SPINQ(f)::S(G)
- B(k);N_SPINQ(f)::S(G)
- R(g);::S(G)
Developed and maintained by Brian Stephenson.
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