MESON Chess Problem Database
Problem Display
PID: 103497 (6n1/6P1/Q1pK4/3R4/2p1k1N1/r3ppP1/b3N3/5B2 w - - 0 1)
Callander, Charles
Montreal Gazette, 1895
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rb3
- 2.Qxc4#
- 1...Rc3
- 2.Sxc3#
- 1...Ra4
- 2.Sc3#
- 1...Ra5
- 2.Sc3#
- 1...Rxa6
- 2.Sc3#
- 1...Bb1
- 2.Qxc4#
- 1...Bb3
- 2.Sc3#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...fxe2
- 2.Bg2#
- 1...f2
- 2.Bg2#
- 1...c3
- 2.Re5#
- 2.Qd3#
- 1...Rb3
- Tries
- 1.Kc5?
- 1...Rxa6
- 2.Sc3#
- 1...fxe2
- 2.Bg2#
- 1...cxd5
- 2.Qg6#
- 1...f2
- 2.Bg2#
- 1...Rb3
- 2.Qxc4#
- 1...Rc3
- 2.Sxc3#
- 1...Rd3
- 2.Re5#
- 1...Ra4
- 2.Sc3#
- 1...Bb1
- 2.Qxc4#
- 1...Bb3
- 2.Sc3#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...c3
- 2.Re5#
- 2.Qd3#
- 1...Ra5+!
- 1...Rxa6
- 1.Kd7?
- 1...Sf6+
- 2.Sxf6#
- 1...Kxd5
- 2.Qxc6#
- 1...Rxa6
- 2.Sc3#
- 1...fxe2
- 2.Bg2#
- 1...cxd5
- 2.Qg6#
- 1...f2
- 2.Bg2#
- 1...Rb3
- 2.Qxc4#
- 1...Rc3
- 2.Sxc3#
- 1...Ra4
- 2.Sc3#
- 1...Ra5
- 2.Sc3#
- 1...Bb1
- 2.Qxc4#
- 1...Bb3
- 2.Sc3#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...c3
- 2.Re5#
- 2.Qd3#
- 1...c5
- 2.Qe6#
- 1...Rd3!
- 1...Sf6+
- 1.Qc8?
- threat
- 2.Rd4#
- 2.Qf5#
- 2.Qe6#
- 1...fxe2
- 2.Bg2#
- 2.Qf5#
- 1...f2
- 2.Bg2#
- 2.Qf5#
- 1...Rd3
- 2.Qf5#
- 2.Qe6#
- 1...Sh6
- 2.Sf6#
- 2.Rd4#
- 2.Qe6#
- 2.Qe8#
- 1...Se7
- 2.Sf6#
- 2.Rd4#
- 2.Qe6#
- 1...c5
- 2.Qf5#
- 2.Qe6#
- 1...cxd5!
- threat
- 1.Qxa3?
- threat
- 2.Sc3#
- 2.Re5#
- 2.Qxe3#
- 1...fxe2
- 2.Bg2#
- 2.Qxe3#
- 1...f2
- 2.Bg2#
- 2.Qxe3#
- 1...Bb3
- 2.Sc3#
- 1...c3
- 2.Sxc3#
- 1...cxd5!
- threat
- 1.Kc5?
- Keys
- 1.Kc7!
- 1...Kxd5
- 2.Qxc6#
- 1...Rxa6
- 2.Sc3#
- 1...fxe2
- 2.Bg2#
- 1...cxd5
- 2.Qg6#
- 1...f2
- 2.Bg2#
- 1...Rb3
- 2.Qxc4#
- 1...Rc3
- 2.Sxc3#
- 1...Rd3
- 2.Re5#
- 1...Ra4
- 2.Sc3#
- 1...Ra5
- 2.Sc3#
- 1...Bb1
- 2.Qxc4#
- 1...Bb3
- 2.Sc3#
- 1...Sf6
- 2.Sxf6#
- 1...Sh6
- 2.Sf6#
- 1...Se7
- 2.Sf6#
- 1...c3
- 2.Re5#
- 2.Qd3#
- 1...c5
- 2.Qe6#
- 1...Kxd5
- 1.Kc7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(b);S_CUTB(a)::QAR2(F),XP(e)
- R(b);N_GUARD::S(B),XR(b)
- R(b);N_GUARD::S(B)
- R(b);N_GUARD,XQ(F)::S(B)
- B(a);N_GUARD::QAR2(F),XP(e)
- B(a);S_CUTR(b)::S(B)
- S(h);N_GUARD::S(D),XS(h)
- S(h);N_GUARD::S(D)
- P(d);OGATEB,XS(B)::B(A)
- P(d);OGATEB::B(A)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- R(b);N_GUARD,XQ(F)::S(B)
- P(d);OGATEB,XS(B)::B(A)
- P(g);OGATE,XR(E)::QAB(F)
- P(d);OGATEB::B(A)
- R(b);S_CUTB(a)::QAR2(F),XP(e)
- R(b);N_GUARD::S(B),XR(b)
- R(b);SBLOCK::R1(E)
- R(b);N_GUARD::S(B)
- B(a);N_GUARD::QAR2(F),XP(e)
- B(a);S_CUTR(b)::S(B)
- S(h);N_GUARD::S(D),XS(h)
- S(h);N_GUARD::S(D)
- Refutation
- R(b);CHECK
- Try
- K(G);P-FLIGHT
- Vars
- S(h);CHECK,N_GUARD::S(D),XS(h)
- K(f);OGATEB,S_FLIGHT,XR(E)::QAB1(F),XP(g)
- R(b);N_GUARD,XQ(F)::S(B)
- P(d);OGATEB,XS(B)::B(A)
- P(g);OGATE,SBLOCK,XR(E)::QAB(F)
- P(d);OGATEB::B(A)
- R(b);S_CUTB(a)::QAR2(F),XP(e)
- R(b);N_GUARD::S(B),XR(b)
- R(b);N_GUARD::S(B)
- B(a);N_GUARD::QAR2(F),XP(e)
- B(a);S_CUTR(b)::S(B)
- S(h);N_GUARD::S(D)
- P(g);OGATE::QAR2(F)
- Refutation
- R(b);P_PINR(E)
- Try
- Q(F);
- Threat
- DUALS(3)
- Refutation
- P(g);XR(E)
- Try
- Q(F);XR(b)
- Threat
- DUALS(3)
- Vars
- B(a);::S(B)
- P(e);::S(B),XP(e)
- Refutation
- P(g);XR(E)
- Try
- Actual
- K(G);S_FLIGHT
- Vars
- K(f);OGATEB,S_FLIGHT,XR(E)::QAB1(F),XP(g)
- R(b);N_GUARD,XQ(F)::S(B)
- P(d);OGATEB,XS(B)::B(A)
- P(g);OGATE,SBLOCK,XR(E)::QAB(F)
- P(d);OGATEB::B(A)
- R(b);S_CUTB(a)::QAR2(F),XP(e)
- R(b);N_GUARD::S(B),XR(b)
- R(b);SBLOCK::R1(E)
- R(b);N_GUARD::S(B)
- B(a);N_GUARD::QAR2(F),XP(e)
- B(a);S_CUTR(b)::S(B)
- S(h);N_GUARD::S(D),XS(h)
- S(h);N_GUARD::S(D)
- P(g);OGATE::QAR2(F)
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).