MESON Chess Problem Database
Problem Display
PID: 205654 (1K2N3/1pR5/1Br5/pP1k4/1b5Q/4RP2/2brN1B1/8 w - - 0 1)
Rains, Cyril George
The Observer, 1953
(First published on Sun Aug 9 1953)
#2
10 + 7
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rxe2
- 2.Qd4#
- 1...Rd3
- 2.Qe4#
- 1...Rd4
- 2.Qxd4#
- 1...Rc3
- 2.Sf4#
- 1...Rc4
- 2.Qxc4#
- 1...Rc5
- 2.Rd7#
- 1...Rxb6
- 2.Qc4#
- 1...Rd6
- 2.Sf4#
- 2.Qc4#
- 1...Re6
- 2.Sf4#
- 2.Qc4#
- 1...Rf6
- 2.Qc4#
- 1...Rg6
- 2.Sf4#
- 2.Qc4#
- 1...Rh6
- 2.Sf4#
- 2.Qc4#
- 1...Bd1
- 2.Qe4#
- 1...Bb3
- 2.Qe4#
- 1...Bd3
- 2.Qd4#
- 1...Ba4
- 2.Qe4#
- 1...Be4
- 2.Qxe4#
- 1...Bc5
- 2.Sc3#
- 1...Bd6
- 2.Sf6#
- 1...Rxe2
- Tries
- 1.Sf6+?
- 1...Kd6
- 2.Rd7#
- 2.Qg3#
- 2.Qh2#
- 2.Qf4#
- 1...Rxf6!
- 1...Kd6
- 1.Rd3+?
- 1...Ke5
- 2.Qe4#
- 1...Ke6
- 2.Qf6#
- 2.Qe4#
- 1...Rxd3
- 2.Qe4#
- 1...Bxd3!
- 1...Ke5
- 1.Rxc6?
- threat
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Qc4#
- 1...Bd6+
- 2.Rxd6#
- 1...Rxe2
- 2.Sf6#
- 2.Sc7#
- 2.Qc4#
- 2.Qd4#
- 1...Be4
- 2.Qxe4#
- 1...Rd4
- 2.Sf6#
- 2.Sc7#
- 2.Qxd4#
- 1...Bb3
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Qg5#
- 2.Qe4#
- 2.Qh5#
- 2.f4#
- 1...Bd3
- 2.Sf4#
- 2.Sf6#
- 2.Sc7#
- 2.Qd4#
- 1...Bc3
- 2.Sxc3#
- 2.Sf4#
- 2.Sc7#
- 2.Rc5#
- 2.Rd6#
- 2.Qd8#
- 2.Qc4#
- 1...Bc5
- 2.Sc3#
- 2.Sf6#
- 2.Sc7#
- 2.Rxc5#
- 1...Be7
- 2.Sc3#
- 2.Sf4#
- 2.Sc7#
- 2.Qc4#
- 1...bxc6!
- threat
- 1.Rd7+?
- 1...Rd6
- 2.Sf6#
- 2.Sc7#
- 1...Bd6+!
- 1...Rd6
- 1.Qxb4?
- threat
- 2.Sf4#
- 1...Rxe2
- 2.Qd4#
- 1...Be4
- 2.Qxe4#
- 1...Rd4
- 2.Qxd4#
- 1...Rc4
- 2.Sf6#
- 2.Rd7#
- 2.Qd6#
- 2.Qxc4#
- 1...Rf6
- 2.Sc3#
- 2.Sxf6#
- 2.Rc5#
- 2.Qc5#
- 2.Qc4#
- 1...axb4!
- threat
- 1.Qf4?
- threat
- 2.Re5#
- 1...Rxe2
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Be4
- 2.Qxe4#
- 1...Re6
- 2.Qc4#
- 1...Bd6
- 2.Sf6#
- 2.Qf7#
- 1...Bc3!
- threat
- 1.Sf6+?
- Keys
- 1.Bf1!
- threat
- 2.Sf4#
- 1...Rxe2
- 2.Qd4#
- 1...Rxb6
- 2.Qc4#
- 1...Rd4
- 2.Qxd4#
- 1...Be4
- 2.Qxe4#
- 1...Rd3
- 2.Qe4#
- 1...Rc4
- 2.Qxc4#
- 1...Rc5
- 2.Rd7#
- 1...Rf6
- 2.Qc4#
- 1...Bd3
- 2.Qd4#
- 1...Bc5
- 2.Sc3#
- 1...Bd6
- 2.Sf6#
- threat
- 1.Bf1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- R(b);N_GUARD,XS(A)::QAR1(E)
- R(b);S_CUTB(a)::QAB1(E)
- R(b);N_GUARD::QAR1(E),XR(b)
- R(f);::S(A)
- R(f);N_GUARD::QAB1(E),XR(f)
- R(f);N_GUARD,S_CUTB(c)::R(H)
- R(f);N_GUARD,XB(G)::QAB1(E)
- R(f);N_GUARD::QAB1(E)
- B(a);N_GUARD::QAB1(E)
- B(a);S_CUTR(b)::QAR1(E)
- B(a);N_GUARD::QAB1(E),XB(a)
- B(c);N_GUARD,S_CUTR(f)::S(A)
- B(c);P_PINR(H),SBLOCK,S_CUTR(f)::S(J)
- Tries
- Try
- S(J);CHECK
- Refutation
- R(f);XS(J)
- Try
- R(C);CHECK
- Vars
- K(e);P-FLIGHT::QAR1(E)
- R(b);XR(C)::QAB1(E)
- Refutation
- B(a);XR(C)
- Try
- R(H);XR(f)
- Threat
- DUALS(4)
- Vars
- B(c);CHECK,N_GUARD::R1(H),XB(c)
- B(a);N_GUARD::QAB1(E),XB(a)
- Refutation
- P(g);XR(H)
- Try
- R(H);CHECK
- Refutation
- B(c);CHECK,P_SPINB(c)
- Try
- Q(E);XB(c)
- Threat
- S(A)
- Vars
- R(b);N_GUARD,XS(A)::QAR1(E)
- B(a);N_GUARD::QAB1(E),XB(a)
- R(b);N_GUARD::QAR1(E),XR(b)
- Refutation
- P(d);XQ(E)
- Try
- Q(E);
- Threat
- R1(C)
- Vars
- R(b);N_GUARD,XS(A)::QAR1(E)
- R(b);N_GUARD::QAR1(E),XR(b)
- B(a);N_GUARD::QAB1(E),XB(a)
- R(f);N_GUARD::QAB1(E)
- Refutation
- B(c);
- Try
- Actual
- B(B);
- Threat
- S(A)
- Vars
- R(b);N_GUARD,XS(A)::QAR1(E)
- R(f);N_GUARD,XB(G)::QAB1(E)
- R(b);N_GUARD::QAR1(E),XR(b)
- B(a);N_GUARD::QAB1(E),XB(a)
- R(b);S_CUTB(a)::QAB1(E)
- R(f);N_GUARD::QAB1(E),XR(f)
- R(f);N_GUARD,S_CUTB(c)::R(H)
- R(f);N_GUARD::QAB1(E)
- B(a);S_CUTR(b)::QAR1(E)
- B(c);N_GUARD,S_CUTR(f)::S(A)
- B(c);P_PINR(H),SBLOCK,S_CUTR(f)::S(J)
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