MESON Chess Problem Database
Problem Display
PID: 193792 (b2b1K2/1qP1pN2/5P2/2R1P1R1/r3k3/1p2P1r1/4PBP1/2nQ4 w - - 0 1)
White, Alain Campbell
Chess Amateur (The), 1916
#2
12 + 9
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rf3
- 2.exf3#
- 2.gxf3#
- 1...Ra1
- 2.Rc4#
- 2.Qd4#
- 1...Ra2
- 2.Rc4#
- 2.Qd4#
- 1...Ra3
- 2.Rc4#
- 2.Qd4#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Qxd4#
- 1...Ra5
- 2.Rc4#
- 2.Qd4#
- 1...Ra6
- 2.Rc4#
- 2.Qd4#
- 1...Ra7
- 2.Rc4#
- 2.Qd4#
- 1...Sa2
- 2.Qb1#
- 2.Qd3#
- 1...Sxe2
- 2.Qb1#
- 1...Sd3
- 2.Qxd3#
- 2.exd3#
- 1...exf6
- 2.Sd6#
- 1...e6
- 2.Sd6#
- 1...Rf3
- Tries
- 1.Qc2+?
- 1...Sd3
- 2.Qxd3#
- 2.exd3#
- 1...bxc2!
- 1...Sd3
- 1.Qh1?
- threat
- 2.Qh7#
- 1...Rxe3
- 2.Qh4#
- 1...Rxg5
- 2.g4#
- 1...exf6
- 2.Sd6#
- 1...Rf3
- 2.gxf3#
- 1...Rh3
- 2.gxh3#
- 1...Qc8!
- threat
- 1.Qc2+?
- Keys
- 1.Qd7!
- threat
- 2.Qf5#
- 1...Rxe3
- 2.Rg4#
- 2.Qg4#
- 1...Rxg5
- 2.Sxg5#
- 1...Qc8
- 2.Qxa4#
- 1...Rf3
- 2.exf3#
- 2.gxf3#
- 1...e6
- 2.Sd6#
- threat
- 1.Qd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- R(d);N_GUARD::R(F),XR(d)
- R(d);N_GUARD::QAR1(A),XR(d)
- S(a);OGATE,XP(B)::QAB(A)
- P(g);N_GUARD,XP(I)::S(K)
- P(g);N_GUARD::S(K)
- Tries
- Try
- Q(A);CHECK
- Refutation
- P(b);XQ(A)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- R(c);N_GUARD,XP(E)::QAR(A)
- R(c);OGATE,XR(H)::QAB(A)+P(D)
- P(g);N_GUARD,XP(I)::S(K)
- R(c);OGATE::P(D),XR(c)
- R(c);OGATE::QAB(A)+P(D),XR(c)
- Refutation
- Q(f);
- Try
- Actual
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(c);XR(H)::S(K),XR(c)
- Q(f);N_GUARD::QAR(A),XR(d)
- P(g);N_GUARD::S(K)
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).