MESON Chess Problem Database
Problem Display
PID: 6350 (2NB3K/R4P2/rQB1k3/R7/1Npp1r1p/2p2p2/7q/8 w - - 0 1)
Mansfield, Comins
2nd Place, USCF, 1928
#2
9 + 9
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
| 3202 | Complete Mansfield/I | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Re4
- 2.f8S#
- 1...Rg4
- 2.f8S#
- 1...Rf6
- 2.Re7#
- 1...Rxf7
- 2.Bd7#
- 1...Rxa7
- 2.Be8#
- 1...Re4
- Tries
- 1.Bg5?
- threat
- 2.Re7#
- 1...Rxf7
- 2.Bd7#
- 1...Rxa7
- 2.Be8#
- 1...Rxa5!
- threat
- 1.Rg5?
- threat
- 2.Bd5#
- 1...Rxa7
- 2.Be8#
- 1...Rf5!
- threat
- 1.Rh5?
- threat
- 2.Bd5#
- 1...Rxa7
- 2.Be8#
- 1...Rf5!
- threat
- 1.Qxd4?
- threat
- 2.Re5#
- 2.Re7#
- 2.Qe5#
- 2.Qd5#
- 2.Qd6#
- 2.Qd7#
- 1...Rxd4
- 2.f8S#
- 1...Rxf7
- 2.Qxc4#
- 2.Qd5#
- 1...Rxc6
- 2.Re5#
- 2.Re7#
- 2.Qe5#
- 2.Qd5#
- 2.Qd7#
- 1...Rxa7
- 2.Qd5#
- 1...Qd2
- 2.Re5#
- 2.Re7#
- 2.Qe5#
- 1...Qe2
- 2.Re7#
- 2.Qd5#
- 2.Qd6#
- 2.Qd7#
- 1...Re4
- 2.Re7#
- 2.Qf6#
- 2.Qd5#
- 2.Qd7#
- 2.f8S#
- 1...Rg4
- 2.Re7#
- 2.Qf6#
- 2.Qxg4#
- 2.Qd5#
- 2.Qd7#
- 2.f8S#
- 1...Rf5
- 2.Re7#
- 2.Qd7#
- 1...Rf6
- 2.Re7#
- 2.Qxf6#
- 2.Qxc4#
- 2.Qd5#
- 2.Qd7#
- 1...Rxa5!
- threat
- 1.Qc5?
- threat
- 2.Qd6#
- 2.Qe7#
- 2.Qxc4#
- 2.Qd5#
- 2.Qe5#
- 1...Rxf7
- 2.Qxc4#
- 2.Qd5#
- 1...Rxc6
- 2.Qe7#
- 2.Qd5#
- 2.Qe5#
- 2.Qxc6#
- 1...Rxa7
- 2.Qxc4#
- 2.Qd5#
- 1...Qa2
- 2.Qd6#
- 2.Qe7#
- 2.Qd5#
- 2.Qe5#
- 1...Qe2
- 2.Qd6#
- 2.Qe7#
- 2.Qd5#
- 1...Re4
- 2.Qe7#
- 2.Qxc4#
- 2.Qd5#
- 2.Qf5#
- 2.f8S#
- 1...Rg4
- 2.Qe7#
- 2.Qxc4#
- 2.Qd5#
- 2.Qf5#
- 2.f8S#
- 1...Rf5
- 2.Qe7#
- 2.Qxf5#
- 1...Rf6
- 2.Re7#
- 2.Qe7#
- 2.Qxc4#
- 2.Qd5#
- 1...d3
- 2.Qd6#
- 2.Qe7#
- 2.Qd5#
- 2.Qe5#
- 1...Rxa5!
- threat
- 1.Qc7?
- threat
- 2.Re5#
- 2.Qe5#
- 2.Qd6#
- 2.Qd7#
- 2.Qe7#
- 1...Rxf7
- 2.Qxf7#
- 1...Rxc6
- 2.Re5#
- 2.Qe5#
- 2.Qxc6#
- 2.Qd7#
- 2.Qe7#
- 1...Rxa7
- 2.Re5#
- 1...Qe2
- 2.Qd6#
- 2.Qd7#
- 2.Qe7#
- 1...Re4
- 2.Qd7#
- 2.Qe7#
- 2.f8S#
- 1...Rg4
- 2.Qd7#
- 2.Qe7#
- 2.f8S#
- 1...Rf5
- 2.Qd7#
- 2.Qe7#
- 1...Rf6
- 2.Qd7#
- 2.Qe7#
- 1...Rxa5!
- threat
- 1.Qb5?
- threat
- 2.Qxc4#
- 2.Qd5#
- 2.Qe5#
- 1...Rxf7
- 2.Qxc4#
- 2.Qd5#
- 1...Rxc6
- 2.Qxc6#
- 2.Qd5#
- 2.Qe5#
- 1...Rxa7
- 2.Qxc4#
- 2.Qd5#
- 1...Qa2
- 2.Qd5#
- 2.Qe5#
- 1...Qe2
- 2.Qd5#
- 1...Re4
- 2.Qxc4#
- 2.Qd5#
- 2.Qf5#
- 2.f8S#
- 1...Rg4
- 2.Qxc4#
- 2.Qd5#
- 2.Qf5#
- 2.f8S#
- 1...Rf5
- 2.Qxf5#
- 1...Rf6
- 2.Re7#
- 2.Qxc4#
- 2.Qd5#
- 1...d3
- 2.Qd5#
- 2.Qe5#
- 1...Rxa5!
- threat
- 1.Qxa6?
- threat
- 2.Bxf3#
- 2.Ba4#
- 2.Be4#
- 2.Ba8#
- 2.Be8#
- 2.Qxc4#
- 1...Rxf7
- 2.Bd7#
- 2.Qxc4#
- 1...Qa2
- 2.Bxf3#
- 2.Ba4#
- 2.Be4#
- 2.Ba8#
- 2.Be8#
- 1...Qe2
- 2.Bxf3#
- 2.Ba4#
- 2.Be4#
- 2.Ba8#
- 2.Be8#
- 1...Re4
- 2.Qxc4#
- 2.f8S#
- 1...Rg4
- 2.Qxc4#
- 2.f8S#
- 1...Rf6
- 2.Re7#
- 2.Qxc4#
- 1...f2
- 2.Bh1#
- 2.Bg2#
- 2.Bf3#
- 2.Ba4#
- 2.Be4#
- 2.Ba8#
- 2.Be8#
- 2.Qxc4#
- 1...d3
- 2.Bxf3#
- 2.Ba4#
- 2.Be4#
- 2.Ba8#
- 2.Be8#
- 1...Rf5!
- threat
- 1.f8Q?
- threat
- 2.Bd7#
- 2.Re7#
- 2.Qd6#
- 2.Qe7#
- 2.Qe8#
- 1...Rxa5
- 2.Re7#
- 1...Rxa7
- 2.Ba4#
- 2.Be8#
- 1...Re4
- 2.Bd7#
- 2.Re7#
- 2.Qh6#
- 2.Qe7#
- 2.Qf5#
- 2.Qf6#
- 2.Qf7#
- 2.Qe8#
- 2.Qg8#
- 1...Rg4
- 2.Bd7#
- 2.Re7#
- 2.Qe7#
- 2.Qf5#
- 2.Qf6#
- 2.Qf7#
- 2.Qe8#
- 1...Rf5
- 2.Bd7#
- 2.Re7#
- 2.Qe7#
- 2.Qxf5#
- 2.Qe8#
- 1...Rf6
- 2.Bd7#
- 2.Re7#
- 2.Qe7#
- 2.Qxf6#
- 2.Qe8#
- 1...Rf7
- 2.Bd7#
- 2.Qxf7#
- 1...Rxf8+!
- threat
- 1.f8R?
- threat
- 2.Bd7#
- 2.Re7#
- 2.Re8#
- 1...Rxa5
- 2.Re7#
- 1...Rxa7
- 2.Ba4#
- 2.Be8#
- 1...Rf7
- 2.Bd7#
- 1...Rxf8+!
- threat
- 1.Bg5?
- Keys
- 1.Sd3!
- threat
- 2.Re5#
- 1...Rxf7
- 2.Bd7#
- 1...Rxa5
- 2.Be4#
- 1...Rxa7
- 2.Be8#
- 1...cxd3
- 2.Qb3#
- 1...Qe2
- 2.Sxf4#
- 1...Re4
- 2.f8S#
- 1...Rg4
- 2.f8S#
- 1...Rf5
- 2.Bd5#
- 1...Rf6
- 2.Re7#
- threat
- 1.Sd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD::P=S
- R(f);SBLOCK::R1(E)
- R(f);SBLOCK,XP(F)::QAR(C)+B(D),DCHECK
- R(h);N_GUARD,XR(E)::QAR(C)+B(D)
- Tries
- Try
- B(H);
- Threat
- R1(E)
- Vars
- R(f);SBLOCK,XP(F)::QAR(C)+B(D),DCHECK
- R(h);N_GUARD,XR(E)::QAR(C)+B(D)
- Refutation
- R(h);XR(B)
- Try
- R(B);
- Threat
- QAR(C)+B(D),DCHECK
- Vars
- R(h);N_GUARD,XR(E)::QAR(C)+B(D)
- Refutation
- R(f);
- Try
- R(B);
- Threat
- QAR(C)+B(D),DCHECK
- Vars
- R(h);N_GUARD,XR(E)::QAR(C)+B(D)
- Refutation
- R(f);
- Try
- Q(C);XP(e)
- Threat
- DUALS(6)
- Vars
- R(f);N_GUARD,XQ(C)::P=S
- R(h);XR(E)::QAB1(C)
- Refutation
- R(h);XR(B)
- Try
- Q(C);
- Threat
- DUALS(5)
- Refutation
- R(h);XR(B)
- Try
- Q(C);
- Threat
- DUALS(5)
- Vars
- R(f);OGATE,XP(F)::QAB1(C),XR(f)
- R(h);XR(E)::R1(B)
- Refutation
- R(h);XR(B)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- Q(a);::QAB1(C)
- R(f);N_GUARD::QAB1(C),XR(f)
- Refutation
- R(h);XR(B)
- Try
- Q(C);XR(h)
- Threat
- DUALS(6)
- Refutation
- R(f);
- Try
- P(F);
- Threat
- DUALS(5)
- Vars
- R(h);XR(B)::R1(E)
- Refutation
- R(f);CHECK,XQ(F)
- Try
- P(F);
- Threat
- DUALS(3)
- Vars
- R(h);XR(B)::R1(E)
- R(f);::QAR(C)+B(D),DCHECK
- Refutation
- R(f);CHECK,XR(F)
- Try
- Actual
- S(A);
- Threat
- R1(B)
- Vars
- R(f);SBLOCK,XP(F)::QAR(C)+B(D),DCHECK
- R(h);N_GUARD,XR(B)::QAR(C)+B(D)
- R(h);N_GUARD,XR(E)::QAR(C)+B(D)
- P(d);OGATEB,XS(A)::QAB(C)
- Q(a);N_GUARD::S(A),XR(f)
- R(f);N_GUARD::P=S
- R(f);SBLOCK::QAR(C)+B(D),DCHECK
- R(f);SBLOCK::R1(E)
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