MESON Chess Problem Database
Problem Display
PID: 86959 (2bb1N2/1N5Q/P1k1p3/2Bq4/1R6/6P1/3R4/4K2B w - - 0 1)
Benko, Pal Charles
Magyar Sakkelet, 1976
#2
10 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qg2
- 2.Bxg2#
- 2.Rd6#
- 1...Qf3
- 2.Bxf3#
- 2.Rd6#
- 1...Qe4+
- 2.Bxe4#
- 1...Bd7
- 2.Qxd7#
- 1...Bh4
- 2.Rb6#
- 1...Bg5
- 2.Rb6#
- 1...Bb6
- 2.Rxb6#
- 1...Bf6
- 2.Rb6#
- 1...e5
- 2.Bxd5#
- 1...Qg2
- Tries
- 1.Bg1?
- threat
- 2.Rc2#
- 2.Qc2#
- 1...Qe4+
- 2.Bxe4#
- 1...Qxh1
- 2.Sxd8#
- 2.Rd6#
- 2.Qc2#
- 1...Bxb7
- 2.Qd7#
- 1...Qg2
- 2.Sxd8#
- 2.Bxg2#
- 2.Rd6#
- 2.Qc2#
- 1...Qf3
- 2.Sxd8#
- 2.Bxf3#
- 2.Rd6#
- 2.Qc2#
- 1...Bb6
- 2.Rxb6#
- 1...Bf6
- 2.Rb6#
- 1...Be7!
- threat
- 1.Bd6?
- threat
- 2.Rc2#
- 2.Qc2#
- 1...Qxh1+
- 2.Qxh1#
- 1...Qe4+
- 2.Bxe4#
- 2.Qxe4#
- 1...Bxb7
- 2.Qd7#
- 1...Qg2
- 2.Sxd8#
- 2.Bxg2#
- 2.Qc2#
- 1...Qf3
- 2.Sxd8#
- 2.Bxf3#
- 2.Qc2#
- 1...Bf6
- 2.Qc7#
- 1...Bb6!
- threat
- 1.Rc2?
- threat
- 2.Sxd8#
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Bb6#
- 2.Bd6#
- 2.Ba7#
- 2.Be7#
- 1...Qe4+
- 2.Bxe4#
- 1...Bxb7
- 2.Be7#
- 2.Qxb7#
- 2.Qd7#
- 1...Qg2
- 2.Bxg2#
- 1...Qf3
- 2.Bxf3#
- 1...Bd7
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Bb6#
- 2.Bd6#
- 2.Ba7#
- 2.Be7#
- 2.Qxd7#
- 1...Be7
- 2.Bd6#
- 2.Bxe7#
- 1...Bh4
- 2.Sa5#
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Bb6#
- 2.Bd6#
- 2.Ba7#
- 2.Be7#
- 2.Rb6#
- 1...Ba5
- 2.Sxa5#
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Bb6#
- 2.Bd6#
- 2.Ba7#
- 2.Be7#
- 1...Bg5
- 2.Sa5#
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Bb6#
- 2.Bd6#
- 2.Ba7#
- 2.Be7#
- 2.Rb6#
- 1...Bb6
- 2.Bxb6#
- 2.Rxb6#
- 1...Bf6
- 2.Sa5#
- 2.Bd4#
- 2.Rb6#
- 1...Bc7
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Bb6#
- 2.Bd6#
- 2.Ba7#
- 2.Be7#
- 1...Qxh1+!
- threat
- 1.Rxd5?
- threat
- 2.Sxd8#
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rdd4#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rxd8#
- 1...Bxb7
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Qxb7#
- 2.Qd7#
- 1...Bd7
- 2.Rxd7#
- 2.Qxd7#
- 1...Be7
- 2.Rd7#
- 1...Bh4
- 2.Sa5#
- 2.Rb6#
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rdd4#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Ba5
- 2.Sxa5#
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rd4#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Bg5
- 2.Sa5#
- 2.Rb6#
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rdd4#
- 2.Re5#
- 2.Rf5#
- 2.Rxg5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Bb6
- 2.Rxb6#
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rdd4#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Bf6
- 2.Sa5#
- 2.Rb6#
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rdd4#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Bc7
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rdd4#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...e5
- 2.Sxd8#
- 2.Rxe5#
- 2.Rd6#
- 1...exd5!
- threat
- 1.Bg1?
- Keys
- 1.Qc2!
- threat
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 2.Bb6#
- 2.Bd6#
- 2.Ba7#
- 2.Be7#
- 1...Qxh1+
- 2.Bg1#
- 1...Qe4+
- 2.Be3#
- 1...Kc7
- 2.Bd6#
- 1...Bxb7
- 2.Be7#
- 1...Qg2
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bb6#
- 2.Bd6#
- 2.Ba7#
- 2.Be7#
- 1...Qf3
- 2.Bg1#
- 2.Bf2#
- 2.Be3#
- 2.Bb6#
- 2.Bd6#
- 2.Ba7#
- 2.Be7#
- 1...Bb6
- 2.Bxb6#
- 1...Bf6
- 2.Bd4#
- 1...Be7
- 2.Bd6#
- 2.Bxe7#
- threat
- 1.Qc2!
This is a version of 233381
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- Q(a);CHECK,OGATEB::B(B),XQ(a)
- B(d);N_GUARD::QAB1(I),XB(d)
- B(e);N_GUARD,P_PINP(D)::R1(E)
- B(e);N_GUARD::R1(E)
- B(e);N_GUARD::R1(E),XB(e)
- P(c);N_GUARD::B(B),XQ(a)
- Tries
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,OGATEB::B(B),XQ(a)
- B(d);N_GUARD,XS(H)::QAB1(I)
- B(e);N_GUARD::R1(E),XB(e)
- B(e);N_GUARD::R1(E)
- Refutation
- B(e);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,N_SPINQ(a),OGATE,XB(B)::QAB(I),XQ(a)
- B(d);N_GUARD,XS(H)::QAB1(I)
- B(e);N_GUARD::QAR1(I)
- Refutation
- B(e);
- Try
- R(C);
- Threat
- DUALS(9)
- Vars
- Q(a);CHECK,OGATEB::B(B),XQ(a)
- Q(a);OGATEB::B(B),XQ(a)
- Refutation
- Q(a);CHECK,N_SPINQ(a),XB(B)
- Try
- R(C);XQ(a)
- Threat
- DUALS(12)
- Vars
- B(e);::B(B)+R(C)
- Refutation
- P(c);P_SPINP(c),XR(C)
- Try
- Actual
- Q(I);
- Threat
- DUALS(8)
- Vars
- Q(a);CHECK,N_SPINQ(a),XB(B)::QAR(I)+B(F)
- Q(a);CHECK::QAR(I)+B(F)
- K(b);N_SPINQ(a),P-FLIGHT::QAR(I)+B(F),DCHECK
- B(d);XS(H)::QAR(I)+B(F)
- B(e);::QAR(I)+B(F),XB(e)
- B(e);::QAR(I)+B(F)
Developed and maintained by Brian Stephenson.
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