MESON Chess Problem Database
Problem Display
PID: 140793 (1k5K/1P1pp2p/P2r1N2/1N3B2/6R1/6q1/P6B/6r1 w - - 0 1)
Thomas, WG
The Problemist, 1938
#2
9 + 7
| 3530 | Het Half Pin Thema (II) | 1947 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sxd7#
- 1...Qf2
- 2.Sxd7#
- 1...Qh4
- 2.Sxd7#
- 1...Qg2
- 2.Sxd7#
- 1...Qa3
- 2.Sxd7#
- 1...Qb3
- 2.Sxd7#
- 1...Qd3
- 2.Sxd7#
- 1...Qe3
- 2.Sxd7#
- 1...Qf3
- 2.Sxd7#
- 1...Qh3
- 2.Sxd7#
- 1...Qxg4
- 2.Sxd7#
- 1...Rd1
- 2.Rg8#
- 1...Rd2
- 2.Rg8#
- 1...Rd3
- 2.Rg8#
- 1...Rd4
- 2.Rg8#
- 1...Rd5
- 2.Rg8#
- 1...Rb6
- 2.Sxd7#
- 2.Rg8#
- 1...Rc6
- 2.Sxd7#
- 1...Re6
- 2.Sxd7#
- 2.Rg8#
- 1...Qe1
- Tries
- 1.Bxg3?
- threat
- 2.Sxd7#
- 2.Rg8#
- 1...exf6
- 2.Bxd6#
- 2.Rg8#
- 1...Rc1
- 2.Sxd7#
- 1...e5
- 2.Rg8#
- 1...Rxg3!
- threat
- 1.Bxg3?
- Keys
- 1.Be4!
- threat
- 2.a7#
- 1...Rxa6
- 2.Sxd7#
- 2.Rg8#
- 1...Qf2
- 2.Sxd7#
- 1...Qa3
- 2.Sxd7#
- 1...Qe3
- 2.Sxd7#
- 1...Rd5
- 2.Rg8#
- 1...Rc6
- 2.Sxd7#
- threat
- 1.Be4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 12
- Sets
- Q(b);P_SPINR(c)::S(G),XP(d)
- Q(b);P_SPINR(c),XR(C)::S(G),XP(d)
- R(c);P_SPINQ(b)::R(C)
- R(c);N_GUARD,P_SPINQ(b)::S(G),XP(d)
- Tries
- Try
- B(B);P_PINR(c),XQ(b)
- Threat
- DUALS(2)
- Vars
- R(a);::S(G),XP(d)
- P(e);N_SPINR(c)::R(C)
- Refutation
- R(a);N_SPINR(c),XB(B)
- Try
- Actual
- B(E);
- Threat
- P(F)
- Vars
- Q(b);P_SPINR(c)::S(G),XP(d)
- R(c);P_SPINQ(b)::R(C)
- R(c);N_GUARD,P_SPINQ(b)::S(G),XP(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).