MESON Chess Problem Database
Problem Display
PID: 35505 (3K1Rn1/1N2p3/1np1k2p/2R4B/4Pp2/p4P1b/P3Q3/8 w - - 0 1)
Goulty, Allison Howard
The Observer, 1954
(First published on Sun Feb 7 1954)
#2
9 + 9
| 3105 | FIDE Album (1945-1955) | 1964 |
| 56 | The Problemist | 2004 |
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bf1
- 2.Bg4#
- 1...Bg2
- 2.Bg4#
- 1...Bg4
- 2.Bxg4#
- 1...Bf5
- 2.exf5#
- 1...Sa4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sd5
- 2.exd5#
- 1...Sd7
- 2.Qc4#
- 1...Sa8
- 2.Qc4#
- 1...Sc8
- 2.Qc4#
- 1...Sf6
- 2.Bf7#
- 1...Bf1
- Tries
- 1.Kc7?
- threat
- 2.Sd8#
- 1...Sd5+
- 2.exd5#
- 1...Sa8+!
- threat
- 1.Ke8?
- 1...Sd5
- 2.exd5#
- 1...Bf1
- 2.Bg4#
- 1...Bg2
- 2.Bg4#
- 1...Bg4
- 2.Bxg4#
- 1...Bf5
- 2.exf5#
- 1...Sa4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sd7
- 2.Qc4#
- 1...Sa8
- 2.Qc4#
- 1...Sc8
- 2.Qc4#
- 1...Sf6+!
- 1...Sd5
- 1.Ra5?
- 1...Sd5
- 2.exd5#
- 1...Bf1
- 2.Bg4#
- 1...Bg2
- 2.Bg4#
- 1...Bg4
- 2.Bxg4#
- 1...Bf5
- 2.exf5#
- 1...Sa4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sd7
- 2.Qc4#
- 1...Sa8
- 2.Qc4#
- 1...Sc8
- 2.Qc4#
- 1...Sf6
- 2.Bf7#
- 1...c5!
- 1...Sd5
- 1.Rff5?
- threat
- 2.Bf7#
- 2.Rce5#
- 2.Rxc6#
- 1...Sc4
- 2.Bf7#
- 2.Qxc4#
- 1...Sd5
- 2.Bf7#
- 2.Rxc6#
- 1...Sd7
- 2.Bf7#
- 2.Rxc6#
- 2.Qc4#
- 1...Sc8
- 2.Bf7#
- 2.Rce5#
- 2.Qc4#
- 1...Sf6
- 2.Rce5#
- 2.Rxc6#
- 2.Rfe5#
- 1...Bxf5!
- threat
- 1.Qd1?
- 1...Bf1
- 2.Bg4#
- 1...Bg2
- 2.Bg4#
- 1...Bg4
- 2.Bxg4#
- 1...Bf5
- 2.exf5#
- 1...Sa4
- 2.Qb3#
- 2.Qd7#
- 1...Sc4
- 2.Qd7#
- 1...Sd7
- 2.Qb3#
- 2.Qxd7#
- 1...Sa8
- 2.Qb3#
- 2.Qd7#
- 1...Sc8
- 2.Qb3#
- 2.Qd7#
- 1...Sf6
- 2.Bf7#
- 1...Sd5!
- 1...Bf1
- 1.Qf1?
- threat
- 2.Qxh3#
- 1...Bxf1
- 2.Bg4#
- 1...Bg2
- 2.Bg4#
- 1...Bg4
- 2.Bxg4#
- 1...Bf5
- 2.exf5#
- 1...Sf6
- 2.Bf7#
- 1...Sd5!
- threat
- 1.Qd3?
- 1...Bf1
- 2.Bg4#
- 1...Bg2
- 2.Bg4#
- 1...Bg4
- 2.Bxg4#
- 1...Bf5
- 2.exf5#
- 1...Sa4
- 2.Qc4#
- 2.Qb3#
- 2.Qd7#
- 1...Sc4
- 2.Qxc4#
- 2.Qd7#
- 1...Sd7
- 2.Qc4#
- 2.Qb3#
- 2.Qxd7#
- 1...Sa8
- 2.Qc4#
- 2.Qb3#
- 2.Qd7#
- 1...Sc8
- 2.Qc4#
- 2.Qb3#
- 2.Qd7#
- 1...Sf6
- 2.Bf7#
- 1...Sd5!
- 1...Bf1
- 1.Qa6?
- 1...Bf1
- 2.Bg4#
- 1...Bg2
- 2.Bg4#
- 1...Bg4
- 2.Bxg4#
- 1...Bf5
- 2.exf5#
- 1...Sa4
- 2.Qc4#
- 2.Qxc6#
- 1...Sc4
- 2.Qxc4#
- 1...Sd7
- 2.Qc4#
- 2.Qxc6#
- 1...Sa8
- 2.Qc4#
- 2.Qxc6#
- 1...Sc8
- 2.Qc4#
- 1...Sf6
- 2.Bf7#
- 1...Sd5!
- 1...Bf1
- 1.Qb2?
- threat
- 2.Bf7#
- 2.Re5#
- 2.Rxc6#
- 2.Qe5#
- 1...Sc4
- 2.Bf7#
- 1...Sd5
- 2.Bf7#
- 2.Rxc6#
- 1...Sd7
- 2.Bf7#
- 2.Rxc6#
- 2.Qb3#
- 1...Sc8
- 2.Bf7#
- 2.Re5#
- 2.Qe5#
- 2.Qb3#
- 1...axb2!
- threat
- 1.Qc2?
- 1...Bf1
- 2.Bg4#
- 1...Bg2
- 2.Bg4#
- 1...Bg4
- 2.Bxg4#
- 1...Bf5
- 2.exf5#
- 1...Sa4
- 2.Qb3#
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sd7
- 2.Qb3#
- 2.Qc4#
- 1...Sa8
- 2.Qb3#
- 2.Qc4#
- 1...Sc8
- 2.Qb3#
- 2.Qc4#
- 1...Sf6
- 2.Bf7#
- 1...Sd5!
- 1...Bf1
- 1.Qd2?
- 1...Bf1
- 2.Bg4#
- 1...Bg2
- 2.Bg4#
- 1...Bg4
- 2.Bxg4#
- 1...Bf5
- 2.exf5#
- 1...Sa4
- 2.Qd7#
- 1...Sc4
- 2.Qd7#
- 1...Sd7
- 2.Qxd7#
- 1...Sa8
- 2.Qd7#
- 1...Sc8
- 2.Qd7#
- 1...Sf6
- 2.Bf7#
- 1...Sd5!
- 1...Bf1
- 1.Qg2?
- threat
- 2.Qxh3#
- 2.Qxg8#
- 1...Bxg2
- 2.Bg4#
- 1...Bg4
- 2.Bxg4#
- 2.Qxg4#
- 1...Bf5
- 2.Qxg8#
- 2.exf5#
- 1...Sf6
- 2.Bf7#
- 1...Sd5!
- threat
- 1.Qh2?
- threat
- 2.Qxh3#
- 1...Bf1
- 2.Bg4#
- 1...Bg2
- 2.Bg4#
- 1...Bg4
- 2.Bxg4#
- 1...Bf5
- 2.exf5#
- 1...Sf6
- 2.Bf7#
- 1...Sd5!
- threat
- 1.Kc7?
- Keys
- 1.e5!
- 1...Sf6
- 2.exf6#
- 1...Bf1
- 2.Bg4#
- 1...Bg2
- 2.Bg4#
- 1...Bg4
- 2.Bxg4#
- 1...Bf5
- 2.Bf7#
- 1...Sa4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sd5
- 2.Rxc6#
- 1...Sd7
- 2.Qc4#
- 1...Sa8
- 2.Qc4#
- 1...Sc8
- 2.Qc4#
- 1...Sf6
- 1.e5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(b);N_GUARD::B(F)
- B(b);N_GUARD::B(F),XB(b)
- B(b);OGATE::QAR(B)+P(D)DCHECK,XB(b)
- S(d);N_GUARD::QAB(B)
- S(d);N_GUARD::QAB(B),XS(d)
- S(d);OGATE::QAR(B)+P(D)DCHECK,XS(d)
- S(i);SBLOCK::B(F)
- Tries
- Try
- K(H);S_FLIGHT
- Threat
- S(G)
- Vars
- S(d);CHECK,OGATE::QAR(B)+P(D)DCHECK,XS(d)
- Refutation
- S(d);CHECK
- Try
- K(H);P-FLIGHT
- Vars
- S(d);OGATE::QAR(B)+P(D)DCHECK,XS(d)
- B(b);N_GUARD::B(F)
- B(b);N_GUARD::B(F),XB(b)
- B(b);OGATE::QAR(B)+P(D)DCHECK,XB(b)
- S(d);N_GUARD::QAB(B)
- S(d);N_GUARD::QAB(B),XS(d)
- Refutation
- S(i);CHECK
- Try
- R(E);
- Vars
- S(d);OGATE::QAR(B)+P(D)DCHECK,XS(d)
- B(b);N_GUARD::B(F)
- B(b);N_GUARD::B(F),XB(b)
- B(b);OGATE::QAR(B)+P(D)DCHECK,XB(b)
- S(d);N_GUARD::QAB(B)
- S(d);N_GUARD::QAB(B),XS(d)
- S(i);SBLOCK::B(F)
- Refutation
- P(e);
- Try
- R(I);
- Threat
- DUALS(3)
- Refutation
- B(b);XR(I)
- Try
- Q(B);
- Vars
- B(b);N_GUARD::B(F)
- B(b);N_GUARD::B(F),XB(b)
- B(b);OGATE::P(D),XB(b)
- S(d);N_GUARD::QAB1(B)
- S(i);SBLOCK::B(F)
- Refutation
- S(d);
- Try
- Q(B);
- Threat
- QAB(B),XB(b)
- Vars
- B(b);N_GUARD,XQ(B)::B(F)
- B(b);N_GUARD::B(F)
- B(b);N_GUARD::B(F),XB(b)
- B(b);OGATE::P(D),XB(b)
- S(i);SBLOCK::B(F)
- Refutation
- S(d);
- Try
- Q(B);
- Vars
- B(b);N_GUARD::B(F)
- B(b);N_GUARD::B(F),XB(b)
- B(b);OGATE::P(D),XB(b)
- S(i);SBLOCK::B(F)
- Refutation
- S(d);
- Try
- Q(B);
- Vars
- B(b);N_GUARD::B(F)
- B(b);N_GUARD::B(F),XB(b)
- B(b);OGATE::P(D),XB(b)
- S(d);N_GUARD,P_SPINP(e)::QAB(B),XS(d)
- S(d);N_GUARD,P_SPINP(e)::QAB(B)
- S(i);SBLOCK::B(F)
- Refutation
- S(d);P_SPINP(e)
- Try
- Q(B);
- Threat
- DUALS(4)
- Vars
- S(d);::B(F)
- Refutation
- P(a);XQ(B)
- Try
- Q(B);
- Vars
- B(b);N_GUARD::B(F)
- B(b);N_GUARD::B(F),XB(b)
- B(b);OGATE::P(D),XB(b)
- S(d);N_GUARD::QAB(B),XS(d)
- S(i);SBLOCK::B(F)
- Refutation
- S(d);
- Try
- Q(B);
- Vars
- B(b);N_GUARD::B(F)
- B(b);N_GUARD::B(F),XB(b)
- B(b);OGATE::P(D),XB(b)
- S(d);N_GUARD::QAB1(B)
- S(d);N_GUARD::QAB1(B),XS(d)
- S(i);SBLOCK::B(F)
- Refutation
- S(d);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- B(b);N_GUARD,XQ(B)::B(F)
- S(i);SBLOCK::B(F)
- Refutation
- S(d);
- Try
- Q(B);
- Threat
- QAB(B),XB(b)
- Vars
- B(b);N_GUARD::B(F)
- B(b);N_GUARD::B(F),XB(b)
- B(b);OGATE::P(D),XB(b)
- S(i);SBLOCK::B(F)
- Refutation
- S(d);
- Try
- Actual
- P(D);
- Vars
- S(i);OGATE::QAR(B)+P(D),XS(i)
- B(b);N_GUARD::B(F)
- B(b);N_GUARD::B(F),XB(b)
- B(b);SBLOCK::B(F)
- S(d);N_GUARD::QAB(B)
- S(d);N_GUARD::QAB(B),XS(d)
- S(d);SBLOCK::R(E),XP(e)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).