MESON Chess Problem Database
Problem Display
PID: 57583 (3n1N2/8/3p4/4Bkp1/r3Rnb1/p7/K2Q1b1r/1B3R1N w - - 0 1)
Gamage, Frederick
1st Prize, Hochberg MT, 1941
#2
8 + 10
| 268 | Chess Life | 1957 |
| 5397 | Frederick Gamage (Prcic) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Bg1
- 2.Sg3#
- 1...Be3
- 2.Sg3#
- 1...Bg3
- 2.Sxg3#
- 1...Bd4
- 2.Sg3#
- 2.Ree1#
- 2.Re2#
- 2.Re3#
- 1...Bc5
- 2.Sg3#
- 1...Bb6
- 2.Sg3#
- 1...Ba7
- 2.Sg3#
- 1...Sg2
- 2.Sg3#
- 1...Sd3
- 2.Sg3#
- 1...Sh3
- 2.Sg3#
- 1...Sd5
- 2.Sg3#
- 1...Sfe6
- 2.Sg3#
- 1...Sg6
- 2.Sg3#
- 1...dxe5
- 2.Rxf4#
- 1...Bg1
- Tries
- 1.Bd4?
- threat
- 2.Rxf4#
- 1...Bxd4
- 2.Re6#
- 1...Sd3
- 2.Sg3#
- 1...Se2
- 2.Rxe2#
- 2.Rf4#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Sg2
- 2.Sg3#
- 2.Ree1#
- 2.Re2#
- 2.Rf4#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Sh3
- 2.Sg3#
- 2.Ree1#
- 2.Re2#
- 2.Rf4#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Sd5
- 2.Sg3#
- 2.Ree1#
- 2.Re2#
- 2.Rf4#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Sh5
- 2.Ree1#
- 2.Re2#
- 2.Rf4#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Sfe6
- 2.Sg3#
- 2.Ree1#
- 2.Re2#
- 2.Rf4#
- 2.Rxe6#
- 1...Sg6
- 2.Sg3#
- 2.Ree1#
- 2.Re2#
- 2.Rf4#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Rxd4!
- threat
- 1.Bg7?
- threat
- 2.Rxf4#
- 2.Re5#
- 1...Bd1
- 2.Rxf4#
- 1...Be2
- 2.Rxf4#
- 1...Bf3
- 2.Rxf4#
- 1...Bh3
- 2.Rxf4#
- 1...Bh5
- 2.Rxf4#
- 1...Sd3
- 2.Sg3#
- 1...Se2
- 2.Rxa4#
- 2.Rb4#
- 2.Rc4#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 2.Qd5#
- 1...Sg2
- 2.Sg3#
- 2.Rxa4#
- 2.Rb4#
- 2.Rc4#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 2.Qd5#
- 1...Sh3
- 2.Sg3#
- 2.Rxa4#
- 2.Rb4#
- 2.Rc4#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 2.Qd5#
- 1...Sd5
- 2.Sg3#
- 2.Rxa4#
- 2.Rb4#
- 2.Rc4#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 2.Qxd5#
- 1...Sh5
- 2.Rxa4#
- 2.Rb4#
- 2.Rc4#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 2.Qd5#
- 1...Sfe6
- 2.Sg3#
- 2.Rxa4#
- 2.Rb4#
- 2.Rc4#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 2.Qd5#
- 1...Sg6
- 2.Sg3#
- 2.Rxa4#
- 2.Rb4#
- 2.Rc4#
- 2.Rd4#
- 2.Rf4#
- 2.Re5#
- 1...Rxe4!
- threat
- 1.Ree1+?
- 1...Sd3
- 2.Sg3#
- 1...Re4!
- 1...Sd3
- 1.Re2+?
- 1...Sd3
- 2.Sg3#
- 1...Re4!
- 1...Sd3
- 1.Re3+?
- 1...Sd3
- 2.Sg3#
- 1...Re4!
- 1...Sd3
- 1.Bd4?
- Keys
- 1.Qd5!
- threat
- 2.Rxf4#
- 1...Be1+
- 2.Bb2#
- 1...Bg1+
- 2.Bb2#
- 1...Be3+
- 2.Bb2#
- 1...Bg3+
- 2.Bb2#
- 1...Bd4+
- 2.Re2#
- 1...Bh4+
- 2.Bb2#
- 1...Bc5+
- 2.Bb2#
- 1...Bb6+
- 2.Bb2#
- 1...Ba7+
- 2.Bb2#
- 1...Rxe4
- 2.Bxe4#
- 2.Qxe4#
- 1...Sxd5
- 2.Sg3#
- 1...dxe5
- 2.Qxe5#
- 1...Sd3
- 2.Sg3#
- 1...Se2
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bg7#
- 2.Bh8#
- 2.Rxa4#
- 2.Rb4#
- 2.Rc4#
- 2.Rd4#
- 2.Rf4#
- 1...Sg2
- 2.Sg3#
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bg7#
- 2.Bh8#
- 2.Rxa4#
- 2.Rb4#
- 2.Rc4#
- 2.Rd4#
- 2.Rf4#
- 1...Sh3
- 2.Sg3#
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bg7#
- 2.Bh8#
- 2.Rxa4#
- 2.Rb4#
- 2.Rc4#
- 2.Rd4#
- 2.Rf4#
- 1...Sh5
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bg7#
- 2.Bh8#
- 2.Rxa4#
- 2.Rb4#
- 2.Rc4#
- 2.Rd4#
- 2.Rf4#
- 1...Sfe6
- 2.Sg3#
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bg7#
- 2.Bh8#
- 2.Rxa4#
- 2.Rb4#
- 2.Rc4#
- 2.Rd4#
- 2.Rf4#
- 1...Sg6
- 2.Sg3#
- 2.Rxa4#
- 2.Rb4#
- 2.Rc4#
- 2.Rd4#
- 2.Rf4#
- threat
- 1.Qd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 7
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- B(a);N_GUARD,P_PINQ(E),P_SPINS(e)::S(C)
- B(a);N_GUARD,P_PINQ(E),P_SPINS(e)::S(C),XB(a)
- S(e);P_SPINB(a)::S(C)
- P(i);SBLOCK,XB(G)::B(A)+R(F),DCHECK,XS(e)
- Tries
- Try
- B(G);
- Threat
- B(A)+R(F),DCHECK,XS(e)
- Vars
- B(a);P_PINQ(E),P_SPINS(e),XB(G)::B(A)+R(F)
- S(e);P_SPINB(a)::S(C)
- Refutation
- R(d);XB(G)
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- B(f);::B(A)+R(F),DCHECK,XS(e)
- S(e);P_SPINB(a)::S(C)
- Refutation
- R(d);P_SPINR(d),XR(F)
- Try
- R(F);CHECK
- Vars
- S(e);P_SPINB(a),P_SPINS(e)::S(C)
- Refutation
- R(d);P_SPINR(d)
- Try
- R(F);CHECK
- Vars
- S(e);P_SPINB(a),P_SPINS(e)::S(C)
- Refutation
- R(d);P_SPINR(d)
- Try
- R(F);CHECK
- Vars
- S(e);P_SPINB(a),P_SPINS(e)::S(C)
- Refutation
- R(d);P_SPINR(d)
- Try
- Actual
- Q(E);
- Threat
- B(A)+R(F),DCHECK,XS(e)
- Vars
- B(a);CHECK,P_SPINS(e)::QAR(E)+B(G)
- B(a);CHECK,P_SPINS(e),S_CUTR(d)::B(A)+R(F)
- S(e);P_SPINB(a),XQ(E)::S(C)
- P(i);OGATE,P_SPINP(i),XB(G)::QAR1(E),XP(i)
- S(e);P_SPINB(a)::S(C)
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).