MESON Chess Problem Database
Problem Display
PID: 175657 (BB6/8/8/8/p7/r2P4/1NRK1k2/2R4n w - - 0 1)
McAllister, George W
Philadelphia Times, 1900
#2
7 + 4
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxd3+
- 2.Kxd3#
- 2.Sxd3#
- 1...Sg3
- 2.Ba7#
- 1...Rxd3+
- Tries
- 1.Bf4?
- 1...Rxd3+
- 2.Kxd3#
- 2.Sxd3#
- 1...Ra1
- 2.Kc3#
- 1...Ra2
- 2.Kc3#
- 1...Rc3
- 2.Kxc3#
- 1...Sg3
- 2.Be3#
- 1...Rb3!
- 1...Rxd3+
- 1.Re1?
- threat
- 2.Kd1#
- 2.Sd1#
- 1...Rxd3+
- 2.Sxd3#
- 1...Rc3
- 2.Sd1#
- 1...Sg3
- 2.Sd1#
- 2.Ba7#
- 1...Ra1!
- threat
- 1.Rxh1?
- threat
- 2.Sd1#
- 1...Rxd3+
- 2.Kxd3#
- 2.Sxd3#
- 1...Ra1!
- threat
- 1.Rc5?
- threat
- 2.Rf5#
- 1...Rxd3+
- 2.Sxd3#
- 1...Sg3!
- threat
- 1.Bf4?
- Keys
- 1.Rc8!
- threat
- 2.Rf8#
- 1...Rxd3+
- 2.Sxd3#
- 1...Sg3
- 2.Ba7#
- threat
- 1.Rc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);SBLOCK::B(G)
- Tries
- Try
- B(G);
- Vars
- R(c);::R(C)+K(D)
- R(c);::R(C)+K(D),XR(c)
- S(a);SBLOCK::B(G)
- Refutation
- R(c);
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- R(c);CHECK,XP(E)::S(B),XR(c)
- R(c);::S(B)
- Refutation
- R(c);
- Try
- R(A);XS(a)
- Threat
- S(B)
- Refutation
- R(c);
- Try
- R(C);
- Threat
- R(C)
- Vars
- R(c);CHECK,XP(E)::S(B),XR(c)
- Refutation
- S(a);
- Try
- Actual
- R(C);
- Threat
- R(C)
- Vars
- R(c);CHECK,XP(E)::S(B),XR(c)
- S(a);SBLOCK::B(G)
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).