MESON Chess Problem Database
Problem Display
PID: 50893 (3K4/4P1B1/n3rR2/1p1BRr2/1P1k1p2/3p1P2/3P4/bbQ5 w - - 0 1)
Dawson, Thomas Rayner
Chess Amateur (The), 1907
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Rg5
- 2.Rxf4#
- 1...Rh5
- 2.Rxf4#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Ba2
- 2.Qxa1#
- 1...Bc2
- 2.Qxa1#
- 1...Rg5
- Tries
- 1.Ba2?
- 1...Rd6+
- 2.Rxd6#
- 1...Kxe5
- 2.Rxe6#
- 1...Rfxe5
- 2.Rxf4#
- 1...Rfxf6
- 2.Rd5#
- 1...Rexe5
- 2.Rd6#
- 1...Rexf6
- 2.Re4#
- 1...Rxe7
- 2.Rd6#
- 1...Sxb4
- 2.Qc5#
- 1...Rg5
- 2.Rxf4#
- 1...Rh5
- 2.Rxf4#
- 1...Rb6
- 2.Re4#
- 1...Rc6
- 2.Re4#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bc2
- 2.Qxa1#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Bxa2!
- 1...Rd6+
- 1.Bxe6?
- threat
- 2.Re4#
- 1...Rxe5
- 2.Rxf4#
- 1...Sc5
- 2.Qxc5#
- 1...Kxe5!
- threat
- 1.Qc4+?
- 1...Kxe5
- 2.Rxe6#
- 1...bxc4!
- 1...Kxe5
- 1.Qc5+?
- 1...Kxe5
- 2.Rxe6#
- 1...Sxc5!
- 1...Kxe5
- 1.Ba2?
- Keys
- 1.Bb3!
- 1...Rd6+
- 2.Rxd6#
- 1...Kxe5
- 2.Rxe6#
- 1...Rfxe5
- 2.Rxf4#
- 1...Rfxf6
- 2.Rd5#
- 1...Rexe5
- 2.Rd6#
- 1...Rexf6
- 2.Re4#
- 1...Rxe7
- 2.Rd6#
- 1...Sxb4
- 2.Qc5#
- 1...Rg5
- 2.Rxf4#
- 1...Rh5
- 2.Rxf4#
- 1...Rb6
- 2.Re4#
- 1...Rc6
- 2.Re4#
- 1...Bb2
- 2.Qxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Ba2
- 2.Qxa1#
- 1...Bc2
- 2.Qxa1#
- 1...Sc5
- 2.Qxc5#
- 1...Sc7
- 2.Qc5#
- 1...Sb8
- 2.Qc5#
- 1...Rd6+
- 1.Bb3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 13
- REMOVED MATES = 0
- Sets
- R(g);OGATE::R(G),XP(e)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(b);OGATE::QAB(A),XB(a)
- Tries
- Try
- B(E);
- Vars
- R(i);CHECK,OGATE::R(G),XR(i)
- K(d);OGATEB,S_FLIGHT,XR(F)::B(I)+R(G),DCHECK,XR(i)
- R(g);OGATE,XR(F)::R(G),XP(e)
- R(g);N_GUARD,XR(G)::R1(F)
- R(i);OGATE,XR(F)::R(G)
- R(i);N_GUARD,XR(G)::R1(F)
- R(i);OGATE,XP(H)::R(G)
- S(h);N_GUARD,XP(D)::QAB1(A)
- R(g);OGATE::R(G),XP(e)
- R(i);N_GUARD::R1(F)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(b);OGATE::QAB(A),XB(a)
- S(h);N_GUARD::QAB1(A),XS(h)
- S(h);N_GUARD::QAB1(A)
- Refutation
- B(b);XB(E)
- Try
- B(E);XR(i)
- Threat
- R1(F)
- Vars
- R(g);OGATE,XR(F)::R(G),XP(e)
- S(h);N_GUARD::QAB1(A),XS(h)
- Refutation
- K(d);S_FLIGHT,XR(F)
- Try
- Q(A);CHECK
- Vars
- K(d);S_FLIGHT,XR(F)::B(I)+R(G),DCHECK,XR(i)
- Refutation
- P(f);XQ(A)
- Try
- Q(A);CHECK
- Vars
- K(d);S_FLIGHT,XR(F)::B(I)+R(G),DCHECK,XR(i)
- Refutation
- S(h);XQ(A)
- Try
- Actual
- B(E);
- Vars
- R(i);CHECK,OGATE::R(G),XR(i)
- K(d);OGATEB,S_FLIGHT,XR(F)::B(I)+R(G),DCHECK,XR(i)
- R(g);OGATE,XR(F)::R(G),XP(e)
- R(g);N_GUARD,XR(G)::R1(F)
- R(i);OGATE,XR(F)::R(G)
- R(i);N_GUARD,XR(G)::R1(F)
- R(i);OGATE,XP(H)::R(G)
- S(h);N_GUARD,XP(D)::QAB1(A)
- R(g);OGATE::R(G),XP(e)
- R(i);N_GUARD::R1(F)
- B(a);N_GUARD::QAB(A),XB(a)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(b);OGATE::QAB(A),XB(a)
- S(h);N_GUARD::QAB1(A),XS(h)
- S(h);N_GUARD::QAB1(A)
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).