MESON Chess Problem Database
Problem Display
PID: 17334 (6k1/1bR2pBN/3P3K/2r4p/8/8/6Q1/b7 w - - 0 1)
Gamage, Frederick
1st Prize, Chess World (The), 1946
#2
6 + 6
| 14773 | The Best American Chess Problems of 1946 | 1948 |
| 5397 | Frederick Gamage (Prcic) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Sf6#
- 1...Rd5
- 2.Be5#
- 1...Re5
- 2.Sf6#
- 1...Rc6
- 2.Bxa1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 1...Bf6
- 2.Sxf6#
- 1...Bxg7+
- 2.Qxg7#
- 1...Ba6
- 2.Be5#
- 1...Ba8
- 2.Qxa8#
- 1...Rc3
- Tries
- 1.Bxa1+?
- 1...Rg5
- 2.Qxg5#
- 1...Bxg2!
- 1...Rg5
- 1.Bb2+?
- 1...Rg5
- 2.Qxg5#
- 1...Bxg2!
- 1...Rg5
- 1.Bc3+?
- 1...Rg5
- 2.Qxg5#
- 1...Bxg2!
- 1...Rg5
- 1.Bd4+?
- 1...Rg5
- 2.Qxg5#
- 1...Bxg2!
- 1...Rg5
- 1.Bf6+?
- 1...Rg5
- 2.Qxg5#
- 1...Bxg2!
- 1...Rg5
- 1.Bxa1+?
- Keys
- 1.d7!
- threat
- 2.d8Q#
- 2.d8R#
- 1...Rc6+
- 2.Bf6#
- 1...Bxg7+
- 2.Qxg7#
- 1...Rxc7
- 2.d8Q#
- 2.d8R#
- 1...Bxg2
- 2.d8Q#
- 2.d8R#
- 1...f5
- 2.d8Q#
- 2.d8R#
- 1...f6
- 2.d8Q#
- 2.d8R#
- 1...Rg5
- 2.d8Q#
- 2.d8R#
- 1...Rc1
- 2.d8Q#
- 2.d8R#
- 1...Rc2
- 2.d8Q#
- 2.d8R#
- 1...Rc3
- 2.Sf6#
- 2.d8Q#
- 2.d8R#
- 1...Rc4
- 2.d8Q#
- 2.d8R#
- 1...Ra5
- 2.d8Q#
- 2.d8R#
- 1...Rb5
- 2.d8Q#
- 2.d8R#
- 1...Rd5
- 2.Be5#
- 1...Re5
- 2.Sf6#
- 1...Rf5
- 2.d8Q#
- 2.d8R#
- 1...Bb2
- 2.d8Q#
- 2.d8R#
- 1...Bc3
- 2.d8Q#
- 2.d8R#
- 1...Bd4
- 2.d8Q#
- 2.d8R#
- 1...Be5
- 2.d8Q#
- 2.d8R#
- 1...Bf6
- 2.Sxf6#
- 1...Bf3
- 2.d8Q#
- 2.d8R#
- 1...Be4
- 2.d8Q#
- 2.d8R#
- 1...Bd5
- 2.d8Q#
- 2.d8R#
- 1...Ba6
- 2.Be5#
- 2.d8Q#
- 2.d8R#
- 1...Bc6
- 2.Rc8#
- 1...Ba8
- 2.Qxa8#
- 2.d8Q#
- 2.d8R#
- 1...Bc8
- 2.Be5#
- 2.dxc8Q#
- 2.dxc8R#
- 2.d8Q#
- 2.d8R#
- 1...h4
- 2.d8Q#
- 2.d8R#
- threat
- 1.d7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- R(b);S_CUTB(a)::S(F)
- R(b);S_CUTB(d)::QAR(A)+B(E)
- B(a);N_GUARD::S(F),XB(a)
- B(a);CHECK,OGATE,P_SPINB(a),XB(E)::QAR1(A),XB(a)
- B(d);N_GUARD::QAR(A)+B(E)
- B(d);OGATE::QAR(A),XB(d)
- Tries
- Try
- B(E);CHECK,XB(a)
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAR(A),XR(b)
- Refutation
- B(d);XQ(A)
- Try
- B(E);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAR(A),XR(b)
- Refutation
- B(d);XQ(A)
- Try
- B(E);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAR(A),XR(b)
- Refutation
- B(d);XQ(A)
- Try
- B(E);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAR(A),XR(b)
- Refutation
- B(d);XQ(A)
- Try
- B(E);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAR(A),XR(b)
- Refutation
- B(d);XQ(A)
- Try
- Actual
- P(B);
- Threat
- P=Q
- Vars
- R(b);CHECK,N_GUARD,S_CUTB(d)::QAR(A)+B(E)
- B(a);CHECK,OGATE,P_SPINB(a),XB(E)::QAR1(A),XB(a)
- R(b);XR(D)::P=Q
- B(d);XQ(A)::P=Q
- P(e);::P=Q
- R(b);::P=Q
- R(b);S_CUTB(d)::QAR(A)+B(E)
- R(b);S_CUTB(a)::S(F)
- B(a);::P=Q
- B(a);N_GUARD::S(F),XB(a)
- B(d);::P=Q
- B(d);N_GUARD,S_CUTR(b)::R(D)
- P(c);::P=Q
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).