MESON Chess Problem Database
Problem Display
PID: 212371 (8/4N1K1/2P1kPp1/p7/r5R1/bb1N1QB1/3R4/4r3 w - - 0 1)
Rice, John Michael
The Problemist, 1986
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Rb4
- 2.Sc5#
- 1...Rc4
- 2.Qd5#
- 1...Rxg4
- 2.Qxg4#
- 1...Bc1
- 2.Sc5#
- 1...Bb2
- 2.Sc5#
- 1...Bc5
- 2.Sxc5#
- 1...Bd1
- 2.Qd5#
- 1...Bc2
- 2.Qd5#
- 1...Bd5
- 2.Qxd5#
- 1...g5
- 2.Qf5#
- 1...Rb4
- Tries
- 1.Sb4?
- threat
- 2.Rd6#
- 2.Qxb3#
- 1...Rxb4
- 2.Rd6#
- 1...Bxb4
- 2.Qxb3#
- 1...Rb1
- 2.Re2#
- 2.Rd6#
- 2.Re4#
- 2.Qe2#
- 2.Qe4#
- 2.Qe3#
- 1...Rc1
- 2.Re2#
- 2.Rd6#
- 2.Re4#
- 2.Qe2#
- 2.Qe4#
- 2.Qe3#
- 1...Rd1
- 2.Re2#
- 2.Re4#
- 2.Qe2#
- 2.Qe4#
- 2.Qxb3#
- 2.Qe3#
- 1...Re3
- 2.Rd6#
- 2.Qxe3#
- 1...Re4
- 2.Rd6#
- 2.Rxe4#
- 2.Qxe4#
- 1...Bd1
- 2.Rd6#
- 2.Qd5#
- 1...Ba2
- 2.Rd6#
- 1...Bc2
- 2.Rd6#
- 2.Qd5#
- 1...Bc4
- 2.Rd6#
- 1...Bd5
- 2.Qxd5#
- 1...Re5!
- threat
- 1.Sf4+?
- 1...Ke5
- 2.Rg5#
- 1...Rxf4!
- 1...Ke5
- 1.Re2+?
- 1...Re4
- 2.Rgxe4#
- 2.Qxe4#
- 1...Rxe2!
- 1...Re4
- 1.Rxa4?
- threat
- 2.Qg4#
- 1...Re5
- 2.Sf4#
- 1...Rf1
- 2.Re2#
- 2.Re4#
- 2.Qe2#
- 2.Qe4#
- 2.Qe3#
- 1...Re4
- 2.Rxe4#
- 2.Qxe4#
- 1...Bd1
- 2.Qd5#
- 1...Bxe7!
- threat
- 1.Rc4?
- threat
- 2.Qg4#
- 2.Qd5#
- 1...Rxc4
- 2.Qd5#
- 1...Bxc4
- 2.Qg4#
- 1...Re5
- 2.Sf4#
- 1...Rf1
- 2.Re2#
- 2.Qe2#
- 2.Qe4#
- 2.Qd5#
- 2.Qe3#
- 1...Re4
- 2.Qxe4#
- 1...Bd1
- 2.Qd5#
- 1...Bxe7!
- threat
- 1.Rd4?
- threat
- 2.Qg4#
- 1...Rf1
- 2.Re2#
- 2.Qe2#
- 2.Qe4#
- 2.Qe3#
- 1...Re4
- 2.Qxe4#
- 1...Re5
- 2.Sf4#
- 1...Bd1
- 2.Qd5#
- 1...Rxd4!
- threat
- 1.Qe2+?
- 1...Re4
- 2.Rxe4#
- 1...Rxe2!
- 1...Re4
- 1.Qe3+?
- 1...Re4
- 2.Rxe4#
- 1...Rxe3!
- 1...Re4
- 1.Sb4?
- Keys
- 1.Rb4!
- threat
- 2.Sc5#
- 2.Qg4#
- 1...Rxb4
- 2.Sc5#
- 1...Bxb4
- 2.Qg4#
- 1...Re5
- 2.Sf4#
- 1...Rc1
- 2.Re2#
- 2.Qe2#
- 2.Qe4#
- 2.Qg4#
- 2.Qe3#
- 1...Rf1
- 2.Sc5#
- 2.Re2#
- 2.Qe2#
- 2.Qe4#
- 2.Qe3#
- 1...Re4
- 2.Sc5#
- 2.Qxe4#
- 1...Bd1
- 2.Sc5#
- 2.Qd5#
- threat
- 1.Rb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- R(d);S_CUTB(b)::S(B)
- R(d);S_CUTB(c)::QAB1(C)
- R(d);OGATE,XR(E)::QAB(C),XR(d)
- B(b);N_GUARD::S(B)
- B(b);N_GUARD,P_PINP(G)::S(B)
- B(b);N_GUARD::S(B),XB(b)
- B(c);N_GUARD::QAB1(C)
- B(c);N_GUARD::QAB1(C),XB(c)
- P(g);N_GUARD::QAB1(C)
- Tries
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- R(d);XS(B)::R1(A)
- B(b);XS(B)::QAB(C),XB(c)
- B(c);::R1(A)
- B(c);N_GUARD::QAB1(C),XB(c)
- Refutation
- R(a);
- Try
- S(B);CHECK
- Vars
- K(f);P-FLIGHT::R(E)
- Refutation
- R(d);XS(B)
- Try
- R(A);CHECK
- Refutation
- R(a);XR(A)
- Try
- R(E);XR(d)
- Threat
- QAB(C)
- Vars
- R(a);SBLOCK::S(B)
- B(c);N_GUARD::QAB1(C)
- Refutation
- B(b);XS(H)
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(d);XR(E)::QAB1(C)
- B(c);XR(E)::QAB(C)
- R(a);SBLOCK::S(B)
- R(a);N_GUARD::QAR2(C),XR(a)
- B(c);::QAB1(C)
- Refutation
- B(b);XS(H)
- Try
- R(E);
- Threat
- QAB(C)
- Vars
- R(a);N_GUARD::QAR2(C),XR(a)
- R(a);SBLOCK::S(B)
- B(c);N_GUARD::QAB1(C)
- Refutation
- R(d);XR(E)
- Try
- Q(C);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::R(E),XR(d)
- Refutation
- R(a);XQ(C)
- Try
- Q(C);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::R(E),XR(d)
- Refutation
- R(a);XQ(C)
- Try
- Actual
- R(E);
- Threat
- DUALS(2)
- Vars
- R(d);XR(E)::S(B)
- B(b);XR(E)::QAB(C)
- R(a);SBLOCK::S(B)
Developed and maintained by Brian Stephenson.
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