MESON Chess Problem Database
Problem Display
PID: 18664 (5K1Q/p7/8/Bp2Rp2/3kqP2/N5P1/n3pn2/b1R1N2B w - - 0 1)
Barnes, Barry Peter
2nd Prize, 04. McWilliam U-21 Ty., 1957
#2
10 + 9
| 4199 | Barnes about Chess Problems | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Ke3
- 2.Sac2#
- 1...Qb1
- 2.Rxe2#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Qxh1
- 2.Sxb5#
- 1...Qg2
- 2.Sxb5#
- 1...Qd3
- 2.Rxe2#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Qf3
- 2.Sxb5#
- 1...Qd5
- 2.Re4#
- 1...Qc6
- 2.Re6#
- 1...Qb7
- 2.Re7#
- 1...Qa8+
- 2.Re8#
- 1...Qe3
- 2.Sxb5#
- 2.Rd5#
- 1...Qxf4
- 2.Sxb5#
- 1...Qxe5
- 2.Qxe5#
- 1...Sd3
- 2.Sec2#
- 1...a6
- 2.Bb6#
- 1...Ke3
- Tries
- 1.Rc4+?
- 1...Ke3
- 2.Sac2#
- 1...bxc4!
- 1...Ke3
- 1.Rxb5+?
- 1...Qe5
- 2.Qxe5#
- 1...Ke3!
- 1...Qe5
- 1.Rec5+?
- 1...Qe5
- 2.Qxe5#
- 1...Ke3!
- 1...Qe5
- 1.Rd5+?
- 1...Ke3
- 2.Bd2#
- 1...Kxd5!
- 1...Ke3
- 1.Rxf5+?
- 1...Qe5
- 2.Qxe5#
- 1...Ke3!
- 1...Qe5
- 1.Re6+?
- 1...Ke3
- 2.Sac2#
- 1...Qe5
- 2.Qxe5#
- 1...Kd5!
- 1...Ke3
- 1.Re7+?
- 1...Ke3
- 2.Sac2#
- 1...Qe5
- 2.Qxe5#
- 1...Kd5!
- 1...Ke3
- 1.Re8+?
- 1...Ke3
- 2.Sac2#
- 1...Qe5
- 2.Qxe5#
- 1...Kd5!
- 1...Ke3
- 1.Rc4+?
- Keys
- 1.Qg7!
- threat
- 2.Qxa7#
- 1...Qa8+
- 2.Re8#
- 1...Ke3
- 2.Sac2#
- 1...Qxf4
- 2.Sxb5#
- 1...Qxe5
- 2.Qxe5#
- 1...Qc2
- 2.Qd7#
- 1...Qd5
- 2.Re4#
- 1...Qc6
- 2.Re6#
- 1...Qb7
- 2.Re7#
- 1...Sd3
- 2.Sec2#
- 1...a6
- 2.Bb6#
- 2.Qa7#
- threat
- 1.Qg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- K(e);P_SPINQ(f),S_FLIGHT::S(D)
- Q(f);XB(C)::S(D),XP(g)
- Q(f);::S(D),XP(g)
- Q(f);SBLOCK::QAB(J)+R(H),DCHECK
- Q(f);N_GUARD::QAB(J)+R(H)
- Q(f);CHECK,N_GUARD::QAB(J)+R(H)
- Q(f);XP(F)::S(D),XP(g)
- Q(f);OGATE,P_SPINQ(f),XR(H)::QAB1(J),XQ(f)
- S(d);SBLOCK,S_CUTQ(f)::S(B)
- P(i);N_GUARD::B(G)
- Tries
- Try
- R(A);CHECK
- Vars
- K(e);P_SPINQ(f),S_FLIGHT::S(D)
- Refutation
- P(g);XR(A)
- Try
- R(H);CHECK,XP(g)
- Vars
- Q(f);N_GUARD,P_SPINQ(f)::QAB1(J),XQ(f)
- Refutation
- K(e);S_FLIGHT
- Try
- R(H);CHECK
- Vars
- Q(f);N_GUARD,P_SPINQ(f)::QAB1(J),XQ(f)
- Refutation
- K(e);S_FLIGHT
- Try
- R(H);CHECK
- Vars
- K(e);S_FLIGHT::B(G)
- Refutation
- K(e);P-FLIGHT,P_SPINQ(f),XR(H)
- Try
- R(H);CHECK,XP(h)
- Vars
- Q(f);N_GUARD,P_SPINQ(f)::QAB1(J),XQ(f)
- Refutation
- K(e);S_FLIGHT
- Try
- R(H);CHECK
- Vars
- K(e);P_SPINQ(f),S_FLIGHT::S(D)
- Q(f);N_GUARD,P_SPINQ(f)::QAB1(J),XQ(f)
- Refutation
- K(e);P-FLIGHT,P_SPINQ(f)
- Try
- R(H);CHECK
- Vars
- K(e);P_SPINQ(f),S_FLIGHT::S(D)
- Q(f);N_GUARD,P_SPINQ(f)::QAB1(J),XQ(f)
- Refutation
- K(e);P-FLIGHT,P_SPINQ(f)
- Try
- R(H);CHECK
- Vars
- K(e);P_SPINQ(f),S_FLIGHT::S(D)
- Q(f);N_GUARD,P_SPINQ(f)::QAB1(J),XQ(f)
- Refutation
- K(e);P-FLIGHT,P_SPINQ(f)
- Try
- Actual
- Q(J);
- Threat
- QAB(J),XP(i)
- Vars
- Q(f);CHECK,N_GUARD::QAB(J)+R(H)
- K(e);P_SPINQ(f),S_FLIGHT::S(D)
- Q(f);XP(F)::S(D),XP(g)
- Q(f);OGATE,P_SPINQ(f),XR(H)::QAB1(J),XQ(f)
- Q(f);N_GUARD::QAR(J)
- Q(f);SBLOCK::QAB(J)+R(H),DCHECK
- Q(f);N_GUARD::QAB(J)+R(H)
- S(d);SBLOCK,S_CUTQ(f)::S(B)
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