MESON Chess Problem Database
Problem Display
PID: 74459 (B2R1K2/1N3pp1/8/R4p2/2p1k3/7N/1q1b1Pn1/B2Q1b2 w - - 0 1)
Gamage, Frederick
Chess Correspondent, 1942
#2
9 + 9
| 5397 | Frederick Gamage (Prcic) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Sc5#
- 2.Re5#
- 2.Rd4#
- 1...Qa3+
- 2.Sc5#
- 1...Qd4
- 2.Rxd4#
- 1...Qe5
- 2.Sc5#
- 2.Rxe5#
- 1...Qf6
- 2.Sc5#
- 1...Qb1
- 2.Sc5#
- 2.Re5#
- 2.Rd4#
- 1...Qa2
- 2.Sc5#
- 2.Re5#
- 2.Rd4#
- 1...Qc2
- 2.Sc5#
- 2.Re5#
- 2.Rd4#
- 1...Qb3
- 2.Sc5#
- 2.Re5#
- 2.Rd4#
- 1...Qb4+
- 2.Sc5#
- 1...Qb5
- 2.Sc5#
- 1...Qb6
- 2.Sc5#
- 2.Re5#
- 1...Qxb7
- 2.Bxb7#
- 2.Re5#
- 2.Rd4#
- 1...Bc1
- 2.Sd6#
- 2.Qd5#
- 1...Be1
- 2.Sd6#
- 2.Qd5#
- 1...Bc3
- 2.Sd6#
- 2.Qd5#
- 1...Be3
- 2.Sd6#
- 2.Qd5#
- 2.f3#
- 1...Bb4+
- 2.Sd6#
- 1...Bf4
- 2.Sd6#
- 2.Qd5#
- 1...Bxa5
- 2.Qd5#
- 1...Bg5
- 2.Sd6#
- 2.Qd5#
- 1...Bh6
- 2.Sd6#
- 2.Qd5#
- 1...Se3
- 2.f3#
- 1...Sf4
- 2.Sg5#
- 1...f4
- 2.Sg5#
- 1...Qc1
- Tries
- 1.Sd6+?
- 1...Kd4
- 2.Se4#
- 1...Kd3!
- 1...Kd4
- 1.Bxb2?
- threat
- 2.Sc5#
- 2.Re5#
- 2.Rd4#
- 1...Bb4+
- 2.Sc5#
- 2.Sd6#
- 1...Bxa5
- 2.Sxa5#
- 2.Sc5#
- 2.Sd6#
- 2.Re8#
- 2.Qd5#
- 1...Be2
- 2.Sc5#
- 1...Bc3
- 2.Sd6#
- 2.Qd5#
- 1...Be3
- 2.Sc5#
- 2.Sd6#
- 2.Re5#
- 2.Re8#
- 2.Qd5#
- 2.f3#
- 1...Bf4
- 2.Sc5#
- 2.Sd6#
- 2.Rd4#
- 2.Qd5#
- 1...f4
- 2.Sg5#
- 2.Re5#
- 2.Rd4#
- 1...f6
- 2.Sc5#
- 2.Rd4#
- 1...c3!
- threat
- 1.Re5+?
- 1...Qxe5
- 2.Sc5#
- 1...Kxe5!
- 1...Qxe5
- 1.Rxd2?
- threat
- 2.Sd6#
- 1...Qxd2
- 2.Sc5#
- 1...Qxb7
- 2.Bxb7#
- 2.Rd4#
- 2.Re5#
- 1...Bd3!
- threat
- 1.Qe2+?
- 1...Be3
- 2.f3#
- 1...Se3
- 2.f3#
- 1...Bxe2!
- 1...Be3
- 1.Qg4+?
- 1...Bf4
- 2.Sg5#
- 1...Sf4
- 2.Sg5#
- 1...f4
- 2.Sg5#
- 1...fxg4!
- 1...Bf4
- 1.Qxd2?
- threat
- 2.Sg5#
- 2.Sd6#
- 2.Qd5#
- 1...Qa3+
- 2.Sc5#
- 2.Sd6#
- 1...Qb4+
- 2.Sc5#
- 2.Sd6#
- 1...Qxd2
- 2.Sc5#
- 1...Qxb7
- 2.Sg5#
- 2.Bxb7#
- 1...Bd3
- 2.Sg5#
- 1...Qd4
- 2.Sg5#
- 2.Sd6#
- 1...Qe5
- 2.Sg5#
- 2.Sc5#
- 2.Sd6#
- 1...Qf6
- 2.Sc5#
- 2.Sd6#
- 2.Qd5#
- 1...Qb5
- 2.Sg5#
- 2.Sc5#
- 2.Sd6#
- 1...Se3
- 2.Sd6#
- 2.Qxe3#
- 1...Sf4
- 2.Sg5#
- 2.Sd6#
- 2.Qe3#
- 2.Qxf4#
- 1...f6
- 2.Sd6#
- 2.Qd5#
- 1...g5
- 2.Sxg5#
- 2.Sd6#
- 2.Qd5#
- 1...Kf3!
- threat
- 1.Sd6+?
- Keys
- 1.Rb5!
- threat
- 2.Sa5#
- 1...Qa3+
- 2.Sc5#
- 1...Qb4+
- 2.Sc5#
- 1...Bb4+
- 2.Sd6#
- 1...Qxb5
- 2.Sc5#
- 1...Qd4
- 2.Rxd4#
- 1...Qe5
- 2.Sc5#
- 2.Rxe5#
- 1...Qf6
- 2.Sc5#
- 1...Ba5
- 2.Sxa5#
- 2.Sd6#
- 2.Qd5#
- 1...Se3
- 2.f3#
- 1...Sf4
- 2.Sg5#
- threat
- 1.Rb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- Q(b);CHECK::B(G)+S(F),DCHECK
- Q(b);N_GUARD::R1(H),XQ(b)
- Q(b);::B(G)+S(F),DCHECK
- B(c);CHECK::B(G)+S(F),DCHECK
- B(c);OGATE,XR(E)::QAB1(B)
- S(d);SBLOCK::P(C)
- S(d);SBLOCK,S_CUTB(c)::S(D)
- P(g);SBLOCK,S_CUTB(c)::S(D)
- Tries
- Try
- S(F);CHECK
- Vars
- K(f);P-FLIGHT,P_SPINB(c),P_SPINQ(b)::R(H)+S(F)
- Refutation
- K(f);P_SPINB(c),S_FLIGHT
- Try
- B(A);XQ(b)
- Threat
- DUALS(3)
- Vars
- B(a);::B(G)+S(F),DCHECK
- Refutation
- P(e);
- Try
- R(E);CHECK
- Vars
- Q(b);XR(E)::B(G)+S(F),DCHECK
- Refutation
- K(f);P-FLIGHT,P_SPINQ(b),XR(E)
- Try
- R(H);XB(c)
- Threat
- B(G)+S(F),DCHECK
- Vars
- Q(b);XR(H)::B(G)+S(F),DCHECK
- Refutation
- B(a);
- Try
- Q(B);CHECK
- Vars
- B(c);P_SPINB(c)::P(C)
- S(d);P_SPINS(d)::P(C)
- Refutation
- B(a);XQ(B)
- Try
- Q(B);CHECK
- Vars
- B(c);P_SPINB(c)::S(D)
- S(d);P_SPINS(d)::S(D)
- P(g);P_SPINP(g)::S(D)
- Refutation
- P(g);XQ(B)
- Try
- Q(B);XB(c)
- Threat
- DUALS(3)
- Vars
- Q(b);XQ(B)::B(G)+S(F),DCHECK
- B(a);::S(D)
- Refutation
- K(f);S_FLIGHT
- Try
- Actual
- R(E);
- Threat
- B(G)+S(F)
- Vars
- Q(b);CHECK::B(G)+S(F),DCHECK
- B(c);CHECK::B(G)+S(F),DCHECK
- Q(b);XR(E)::B(G)+S(F),DCHECK
- Q(b);N_GUARD::R1(H),XQ(b)
- Q(b);::B(G)+S(F),DCHECK
- S(d);SBLOCK::P(C)
- S(d);SBLOCK,S_CUTB(c)::S(D)
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).