MESON Chess Problem Database
Problem Display
PID: 667 (8/n6p/2b4n/1pp4Q/Rq2kp2/bN3p1B/2P2pN1/1K1R4 w - - 0 1)
Mansfield, Comins
British Chess Magazine, 1924
#2
8 + 12
| 4797 | A Genius of the Two-mover | 1936 |
| 81 | Chess | 1955 |
| 3202 | Complete Mansfield/I | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Sd2#
- 1...Bb2
- 2.Sxc5#
- 1...Bd5
- 2.Qxd5#
- 1...Bb7
- 2.Qe8#
- 1...Bd7
- 2.Qd5#
- 1...Ba8
- 2.Qe8#
- 1...Be8
- 2.Qxe8#
- 2.Qd5#
- 1...Sf5
- 2.Qxf5#
- 1...Sf7
- 2.Qf5#
- 1...Sg8
- 2.Qf5#
- 1...fxg2
- 2.Qe2#
- 1...c4
- 2.Rd4#
- 1...Qd4
- Tries
- 1.Rd4+?
- 1...Qxd4
- 2.Sd2#
- 1...cxd4!
- 1...Qxd4
- 1.Rxb4+?
- 1...cxb4
- 2.Sc5#
- 2.Rd4#
- 1...c4
- 2.Sc5#
- 2.Rd4#
- 1...Bxb4!
- 1...cxb4
- 1.Qg4?
- threat
- 2.Qe6#
- 2.Qxf4#
- 1...Ke5
- 2.Qe6#
- 1...fxg2
- 2.Qe2#
- 1...Qd4
- 2.Qe6#
- 1...Bc1
- 2.Qe6#
- 1...Bb2
- 2.Qxf4#
- 1...Bd5
- 2.Qxf4#
- 1...Bd7
- 2.Qxf4#
- 1...Sf5
- 2.Qxf5#
- 2.Qxf4#
- 1...Sf7
- 2.Qf5#
- 2.Qxf4#
- 1...Sxg4!
- threat
- 1.Qg6+?
- 1...Ke5
- 2.Qe6#
- 1...Sf5
- 2.Qxf5#
- 2.Qe6#
- 1...hxg6!
- 1...Ke5
- 1.Qg5?
- threat
- 2.Qxf4#
- 2.Qe7#
- 1...Sf5
- 2.Qxf4#
- 2.Qxf5#
- 1...Qd4
- 2.Sd2#
- 1...Bc1
- 2.Qe7#
- 1...Bb2
- 2.Sxc5#
- 2.Qxf4#
- 1...Bd5
- 2.Qxf4#
- 2.Qxd5#
- 1...Bd7
- 2.Qxf4#
- 2.Qd5#
- 1...Sg4
- 2.Qxf4#
- 1...Sf7
- 2.Qxf4#
- 2.Qf5#
- 1...Sg8
- 2.Qxf4#
- 2.Qf5#
- 1...Sc8
- 2.Qxf4#
- 1...c4
- 2.Rd4#
- 2.Qxf4#
- 1...fxg2!
- threat
- 1.Qxh6?
- threat
- 2.Qxf4#
- 2.Qe6#
- 1...Ke5
- 2.Qe6#
- 1...Qd4
- 2.Qe6#
- 1...Bc1
- 2.Qe6#
- 1...Bb2
- 2.Qxf4#
- 1...Bd5
- 2.Qxf4#
- 1...Bd7
- 2.Qxf4#
- 1...fxg2!
- threat
- 1.Rd4+?
- Keys
- 1.Bd7!
- threat
- 2.Qe8#
- 1...Bxd7
- 2.Qd5#
- 1...fxg2
- 2.Qe2#
- 1...Sf5
- 2.Qxf5#
- 1...Qd4
- 2.Sd2#
- 1...Bb2
- 2.Sxc5#
- 1...Bd5
- 2.Qxd5#
- 1...Sg4
- 2.Qf5#
- 1...Sf7
- 2.Qf5#
- 1...Sg8
- 2.Qf5#
- 1...Sc8
- 2.Bxc6#
- 1...c4
- 2.Rd4#
- threat
- 1.Bd7!
This is a version
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- Q(d);N_PINS(E)::S(E)
- B(b);N_PINS(E)::S(E),XP(h)
- B(i);N_GUARD::QAB1(H),XB(i)
- B(i);N_GUARD::QAR(H)
- B(i);N_GUARD::QAB1(H)
- S(j);N_GUARD::QAB1(H),XS(j)
- S(j);N_GUARD::QAB1(H)
- P(c);OGATE,XS(D)::QAR2(H)
- P(h);N_GUARD,N_SPINQ(d),S_CUTQ(d)::R1(B)
- Tries
- Try
- R(B);CHECK,N_PINQ(d)
- Vars
- Q(d);N_PINS(E),P_SPINQ(d),XR(B)::S(E)
- Refutation
- P(h);XR(B)
- Try
- R(G);CHECK,N_SPINS(E),XQ(d)
- Refutation
- B(b);XR(G)
- Try
- Q(H);P_PINP(f)
- Threat
- DUALS(2)
- Vars
- K(e);N_SPINP(f),N_SPINQ(d),P-FLIGHT::QAR1(H)
- P(c);OGATE,XS(D)::QAR2(H)
- Q(d);N_PINS(E)::QAR2(H)
- B(b);::QAR2(H)
- B(b);N_PINS(E)::QAR1(H),XP(f)
- B(i);::QAR1(H),XP(f)
- Refutation
- S(j);N_SPINP(f),XQ(H)
- Try
- Q(H);CHECK
- Vars
- K(e);N_SPINQ(d),P-FLIGHT::QAR1(H)
- Refutation
- P(l);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- Q(d);N_PINS(E)::S(E)
- B(b);::QAR(H)
- S(j);::QAR1(H),XP(f)
- S(k);::QAR1(H),XP(f)
- Refutation
- P(c);XS(D)
- Try
- Q(H);XS(j)
- Threat
- DUALS(2)
- Vars
- K(e);N_SPINQ(d),P-FLIGHT::QAR1(H)
- Q(d);N_PINS(E)::QAR2(H)
- B(b);::QAR2(H)
- B(b);N_PINS(E)::QAR1(H),XP(f)
- B(i);::QAR1(H),XP(f)
- Refutation
- P(c);XS(D)
- Try
- Actual
- B(F);
- Threat
- QAR(H)
- Vars
- B(i);N_GUARD,XB(F)::QAB1(H)
- P(c);OGATE,XS(D)::QAR2(H)
- S(j);N_GUARD::QAB1(H),XS(j)
- Q(d);N_PINS(E)::S(E)
- B(b);N_PINS(E)::S(E),XP(h)
- B(i);N_GUARD::QAB1(H),XB(i)
- S(j);N_GUARD::QAB1(H)
- S(k);N_GUARD::B(F),XB(i)
- P(h);N_GUARD,N_SPINQ(d),S_CUTQ(d)::R1(B)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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