MESON Chess Problem Database
Problem Display
PID: 109947 (r7/1qNp1B1P/1B1nb3/1pR1Rp2/1P1k1P2/P4P1p/p1P2PnK/4r1Q1 w - - 0 1)
Feltham, WH
International Ty., 1930
#2
14 + 12
| 56 | The Problemist | 1931 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxf3
- 2.Rc6#
- 1...Qe4
- 2.Rc6#
- 1...Qc6
- 2.Rxc6#
- 1...Qc8
- 2.Rc6#
- 1...Qxc7
- 2.Rxc7#
- 1...Ra1
- 2.Qxa1#
- 1...Rd1
- 2.Qxd1#
- 1...Re2
- 2.Qa1#
- 1...Re4
- 2.Qa1#
- 2.Qd1#
- 1...Rxe5
- 2.Qa1#
- 2.Qd1#
- 1...Bb3
- 2.Rc4#
- 1...Bc4
- 2.Rxc4#
- 1...Sc4
- 2.Sxb5#
- 1...Se4
- 2.Sxb5#
- 1...Sxf7
- 2.Sxb5#
- 1...Sc8
- 2.Sxb5#
- 1...Se8
- 2.Sxb5#
- 1...Qxf3
- Tries
- 1.Bxe6?
- threat
- 2.Rc4#
- 1...Qxb6
- 2.Red5#
- 1...dxe6
- 2.Sxe6#
- 1...Sc4
- 2.Sxb5#
- 2.Rxc4#
- 1...Qd5
- 2.Rexd5#
- 1...Sxf4!
- threat
- 1.Re3?
- threat
- 2.Rd3#
- 2.c3#
- 1...Qxf3
- 2.Rcc3#
- 2.Rc6#
- 2.c3#
- 1...Rxa3
- 2.h8Q#
- 2.h8B#
- 1...Sxe3
- 2.Qg7#
- 1...Sxf4
- 2.Qg7#
- 2.c3#
- 1...a1Q
- 2.Rd3#
- 1...a1B
- 2.Rd3#
- 1...Qe4
- 2.Rcc3#
- 2.Rc6#
- 2.c3#
- 1...Rc1
- 2.Rd3#
- 1...Rd1
- 2.Qxd1#
- 2.c3#
- 1...Bc4
- 2.Rxc4#
- 2.Rd5#
- 2.c3#
- 1...Se4
- 2.Sxb5#
- 2.Rd3#
- 1...Rxe3!
- threat
- 1.Re4+?
- 1...Qxe4
- 2.Rc6#
- 1...Rxe4
- 2.Qa1#
- 2.Qd1#
- 1...Sxe4
- 2.Sxb5#
- 1...fxe4!
- 1...Qxe4
- 1.Qf1?
- threat
- 2.Rc4#
- 2.Qd3#
- 2.c3#
- 1...Qxf3
- 2.Rc4#
- 2.Rc6#
- 1...Qxb6
- 2.Qd3#
- 2.c3#
- 1...Rxa3
- 2.Rc4#
- 1...Sxf4
- 2.c3#
- 1...Bc4
- 2.Rxc4#
- 1...Sc4
- 2.Sxb5#
- 2.Rxc4#
- 2.Qd3#
- 1...a1Q
- 2.Rc4#
- 2.Qd3#
- 1...a1B
- 2.Rc4#
- 2.Qd3#
- 1...Qe4
- 2.Rc4#
- 2.Rc6#
- 2.c3#
- 1...Rc1
- 2.Rc4#
- 2.Qd3#
- 1...Rd1
- 2.Rc4#
- 2.Qxd1#
- 2.c3#
- 1...Re2
- 2.Qa1#
- 1...Re3
- 2.Rc4#
- 1...Se4
- 2.Sxb5#
- 2.Rc4#
- 2.Qd3#
- 1...Rxf1!
- threat
- 1.h8Q?
- threat
- 2.Re4#
- 2.Red5#
- 1...Qxf3
- 2.Rc6#
- 1...Rxe5
- 2.Qxe5#
- 2.Qa1#
- 2.Qd1#
- 1...Qe4
- 2.Rc6#
- 2.Rxe4#
- 2.Red5#
- 1...Qd5
- 2.Re4#
- 2.Rexd5#
- 1...Re4
- 2.Rxe4#
- 2.Red5#
- 2.Qa1#
- 2.Qd1#
- 1...Bd5
- 2.Re4#
- 2.Rexd5#
- 1...Se4
- 2.Sxb5#
- 2.Rxe4#
- 2.Red5#
- 1...Rxh8!
- threat
- 1.h8B?
- threat
- 2.Re4#
- 2.Red5#
- 1...Qxf3
- 2.Rc6#
- 1...Rxe5
- 2.Bxe5#
- 2.Qa1#
- 2.Qd1#
- 1...Qe4
- 2.Rc6#
- 2.Rxe4#
- 2.Red5#
- 1...Qd5
- 2.Re4#
- 2.Rexd5#
- 1...Re4
- 2.Rxe4#
- 2.Red5#
- 2.Qa1#
- 2.Qd1#
- 1...Bd5
- 2.Re4#
- 2.Rexd5#
- 1...Se4
- 2.Sxb5#
- 2.Rxe4#
- 2.Red5#
- 1...Rxh8!
- threat
- 1.Bxe6?
- Keys
- 1.Re2!
- threat
- 2.Rd2#
- 1...Qxf3
- 2.Rc6#
- 1...Rxe2
- 2.Qa1#
- 1...Rxa3
- 2.h8Q#
- 2.h8B#
- 1...Sxf4
- 2.Qg7#
- 1...Bc4
- 2.Rxc4#
- 1...Sc4
- 2.Sxb5#
- 1...Qe4
- 2.Rc6#
- 1...Rd1
- 2.Qxd1#
- 1...Se4
- 2.Sxb5#
- threat
- 1.Re2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- Q(j);N_GUARD,XP(F)::B(K)+R(I)
- Q(j);N_GUARD::B(K)+R(I)
- Q(j);N_GUARD::B(K)+R(I),XQ(j)
- Q(j);OGATE,XS(L)::B(K)+R(I),XQ(j)
- R(a);OGATE::QAB(A),XR(a)
- R(a);OGATE::QAR(A),XR(a)
- R(a);OGATE::QAB(A)
- B(i);::B(K)+R(I),DCHECK
- B(i);::B(K)+R(I),DCHECK,XB(i)
- S(h);N_GUARD::S(L),XP(f)
- S(h);N_GUARD,XB(M)::S(L),XP(f)
- Tries
- Try
- B(M);XB(i)
- Threat
- B(K)+R(I),DCHECK
- Vars
- Q(j);N_GUARD,XB(K)::R1(J)
- P(k);XB(M)::S(L),XP(k)
- Q(j);N_GUARD::R1(J),XQ(j)
- Refutation
- S(c);XP(H)
- Try
- R(J);
- Threat
- DUALS(2)
- Vars
- R(l);N_GUARD,XP(E)::P=Q
- S(c);OGATE,XR(J)::QAB(A)
- P(b);::R1(J)
- R(a);::R1(J)
- Refutation
- R(a);XR(J)
- Try
- R(J);CHECK
- Vars
- Q(j);XR(J)::B(K)+R(I)
- S(h);XR(J)::S(L),XP(f)
- Refutation
- P(g);XR(J)
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(l);XP(E)::B(K)+R(I),DCHECK
- S(c);XP(H)::P(B)
- B(i);::B(K)+R(I),DCHECK,XB(i)
- R(a);OGATE::QAB(A)
- R(a);::B(K)+R(I),DCHECK
- Refutation
- R(a);XQ(A)
- Try
- P(N);
- Threat
- DUALS(2)
- Vars
- Q(j);N_GUARD,XP(F)::B(K)+R(I)
- Refutation
- R(l);XQ(N)
- Try
- P(N);
- Threat
- DUALS(2)
- Vars
- Q(j);N_GUARD,XP(F)::B(K)+R(I)
- Refutation
- R(l);XB(N)
- Try
- Actual
- R(J);
- Threat
- R(J)
- Vars
- Q(j);N_GUARD,XP(F)::B(K)+R(I)
- R(a);OGATE,XR(J)::QAB(A)
- R(l);N_GUARD,XP(E)::P=Q
- S(c);OGATE,XP(H)::QAB(A)
- B(i);::B(K)+R(I),DCHECK,XB(i)
- S(h);N_GUARD::S(L),XP(f)
- Q(j);N_GUARD::B(K)+R(I)
- R(a);OGATE::QAR(A),XR(a)
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