MESON Chess Problem Database
Problem Display
PID: 135225 (2K1B3/p1b2p2/r3R1p1/3P1k2/2P4Q/8/4b2B/4r3 w - - 0 1)
Einat, Paz
The Problemist, 2009
#2
7 + 8
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rf6#
- 1...Ra2
- 2.Rf6#
- 1...Ra3
- 2.Rf6#
- 1...Ra4
- 2.Rf6#
- 1...Ra5
- 2.Rf6#
- 1...Rd6
- 2.Re5#
- 2.Qf4#
- 1...Bg4
- 2.Qf6#
- 1...Bf4
- 2.Qxf4#
- 1...Ba5
- 2.Re5#
- 2.Qf4#
- 1...Be5
- 2.Rxe5#
- 1...Bb6
- 2.Re5#
- 2.Rf6#
- 2.Qf4#
- 1...Bd6
- 2.Rf6#
- 1...Bd8
- 2.Re5#
- 2.Qf4#
- 1...g5
- 2.Qe4#
- 1...Ra1
- Tries
- 1.Kxc7?
- threat
- 2.Re5#
- 2.Qf4#
- 1...Rxe6
- 2.Qf4#
- 1...Bxc4
- 2.Qf4#
- 1...fxe6
- 2.Qf4#
- 1...Rf1
- 2.Re5#
- 1...Bd1
- 2.Qf4#
- 1...Bf1
- 2.Qf4#
- 1...Bd3
- 2.Qf4#
- 1...Bf3
- 2.Qf4#
- 1...Bg4
- 2.Qf6#
- 1...Bh5
- 2.Qf4#
- 1...g5
- 2.Qe4#
- 1...f6
- 2.Qf4#
- 1...Rc6+!
- threat
- 1.Bxc7?
- threat
- 2.Re5#
- 2.Qf4#
- 1...Rxe6
- 2.Qf4#
- 1...Bxc4
- 2.Qf4#
- 1...fxe6
- 2.Qf4#
- 1...Rf1
- 2.Re5#
- 1...Bd1
- 2.Qf4#
- 1...Bf1
- 2.Qf4#
- 1...Bd3
- 2.Qf4#
- 1...Bf3
- 2.Qf4#
- 1...Bg4
- 2.Qf6#
- 1...Bh5
- 2.Qf4#
- 1...g5
- 2.Qe4#
- 1...f6
- 2.Qf4#
- 1...Rd6!
- threat
- 1.Rd6?
- threat
- 2.Bd7#
- 2.Qf4#
- 1...Rxd6
- 2.Qf4#
- 1...Bxc4
- 2.Qf4#
- 1...Bxd6
- 2.Bd7#
- 1...Rf1
- 2.Bd7#
- 1...Bd1
- 2.Qf4#
- 1...Bf1
- 2.Qf4#
- 1...Bd3
- 2.Qf4#
- 1...Bf3
- 2.Qf4#
- 1...Bh5
- 2.Qf4#
- 1...g5
- 2.Bd7#
- 1...Bg4!
- threat
- 1.Kxc7?
- Keys
- 1.d6!
- threat
- 2.Re5#
- 2.Rf6#
- 1...Kxe6
- 2.Bd7#
- 1...Rxd6
- 2.Re5#
- 1...Bxc4
- 2.Rf6#
- 1...Bxd6
- 2.Rf6#
- 1...fxe6
- 2.Qf4#
- 1...Ra5
- 2.Rf6#
- 1...Bd1
- 2.Rf6#
- 1...Bf1
- 2.Rf6#
- 1...Bd3
- 2.Rf6#
- 1...Bf3
- 2.Rf6#
- 1...Bg4
- 2.Qf6#
- 1...Bh5
- 2.Rf6#
- 1...Bd8
- 2.Re5#
- 1...g5
- 2.Qe4#
- 1...f6
- 2.Rxf6#
- threat
- 1.d6!
This is after
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 6
- Sets
- R(d);N_GUARD::R1(E)
- B(b);SBLOCK::QAR1(C)
- B(g);N_GUARD::QAR1(C),XB(g)
- B(g);N_GUARD::R1(E),XB(g)
- B(g);S_CUTR(d)::R1(E)
- P(e);SBLOCK::QAB1(C)
- Tries
- Try
- K(F);P-FLIGHT,XB(g)
- Threat
- DUALS(2)
- Vars
- R(d);XR(E)::QAR1(C)
- B(b);XP(B)::QAR1(C)
- P(h);XR(E)::QAR1(C)
- R(a);::R1(E)
- B(b);::QAR1(C)
- B(b);SBLOCK::QAR1(C)
- P(e);SBLOCK::QAB1(C)
- P(h);::QAR1(C)
- Refutation
- R(d);CHECK
- Try
- B(A);XB(g)
- Threat
- DUALS(2)
- Vars
- R(d);XR(E)::QAR1(C)
- B(b);XP(B)::QAR1(C)
- P(h);XR(E)::QAR1(C)
- R(a);::R1(E)
- B(b);::QAR1(C)
- B(b);SBLOCK::QAR1(C)
- P(e);SBLOCK::QAB1(C)
- P(h);::QAR1(C)
- Refutation
- R(d);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(d);XR(E)::QAR1(C)
- B(b);XP(B)::QAR1(C)
- B(g);XR(E)::B(G)
- R(a);::B(G)
- B(b);::QAR1(C)
- P(e);::B(G)
- Refutation
- B(b);
- Try
- Actual
- P(D);
- Threat
- DUALS(2)
- Vars
- K(c);OGATEB,S_FLIGHT,XR(E)::B(G)
- R(d);XP(D)::R1(E)
- B(b);XP(B)::R1(E)
- B(g);XP(D)::R1(E)
- P(h);SBLOCK,XR(E)::QAR1(C)
- R(d);::R1(E)
- B(b);::R1(E)
- B(b);SBLOCK::QAR1(C)
- B(g);::R1(E)
- P(e);SBLOCK::QAB1(C)
- P(h);::R1(E),XP(h)
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