MESON Chess Problem Database
Problem Display
PID: 157495 (6K1/QpR3PN/P2pp1kp/2r2r1p/4B2P/2p5/8/B7 w - - 0 1)
Formanek, Bedrich
Praca, 1951
#2
9 + 9
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Rc4
- 2.Qg1#
- 1...Ra5
- 2.Qg1#
- 1...Rb5
- 2.Qg1#
- 1...Rd5
- 2.Qg1#
- 1...Re5
- 2.Qg1#
- 1...Rc6
- 2.Qg1#
- 1...Rxc7
- 2.Qg1#
- 1...c2
- 2.Sf8#
- 1...Rc4
- Tries
- 1.Kh8?
- threat
- 2.g8Q#
- 2.g8R#
- 1...bxa6
- 2.g8Q#
- 2.g8R#
- 1...Rc4
- 2.Qg1#
- 2.g8Q#
- 2.g8R#
- 1...Ra5
- 2.Qg1#
- 2.g8Q#
- 2.g8R#
- 1...Rb5
- 2.Qg1#
- 2.g8Q#
- 2.g8R#
- 1...Rd5
- 2.Qg1#
- 2.g8Q#
- 2.g8R#
- 1...Re5
- 2.Qg1#
- 2.g8Q#
- 2.g8R#
- 1...Rc6
- 2.Qg1#
- 2.g8Q#
- 2.g8R#
- 1...c2
- 2.Sf8#
- 2.g8Q#
- 2.g8R#
- 1...d5
- 2.g8Q#
- 2.g8R#
- 1...e5
- 2.g8Q#
- 2.g8R#
- 1...b5
- 2.g8Q#
- 2.g8R#
- 1...b6
- 2.g8Q#
- 2.g8R#
- 1...Rxc7!
- threat
- 1.Re7?
- threat
- 2.Rxe6#
- 1...Re5
- 2.Qg1#
- 1...e5
- 2.Re6#
- 1...Rc8+!
- threat
- 1.Qb6?
- 1...Rxc7
- 2.Qg1#
- 1...Rc4
- 2.Qg1#
- 1...Ra5
- 2.Qg1#
- 1...Rb5
- 2.Qg1#
- 1...Rd5
- 2.Qg1#
- 1...Re5
- 2.Qg1#
- 1...Rc6
- 2.Qg1#
- 1...c2
- 2.Sf8#
- 1...d5
- 2.Qxe6#
- 1...e5
- 2.Qxd6#
- 1...bxa6!
- 1...Rxc7
- 1.Kh8?
- Keys
- 1.Rc6!
- 1...Rxc6
- 2.Qg1#
- 1...bxa6
- 2.Qf7#
- 1...bxc6
- 2.Qf7#
- 1...Rc4
- 2.Qg1#
- 1...Ra5
- 2.Qg1#
- 1...Rb5
- 2.Qg1#
- 1...Rd5
- 2.Qg1#
- 1...Re5
- 2.Qg1#
- 1...c2
- 2.Sf8#
- 1...d5
- 2.Rxe6#
- 1...e5
- 2.Rxd6#
- 1...b5
- 2.Qf7#
- 1...b6
- 2.Qf7#
- 1...Rxc6
- 1.Rc6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 1
- Sets
- R(b);OGATE::QAR(E)
- R(b);OGATE,XR(F)::QAR(E)
- P(a);::S(H)
- Tries
- Try
- K(I);P-FLIGHT
- Threat
- P=Q
- Vars
- P(i);XP(D)::P=Q
- P(e);::P=Q
- P(f);::P=Q
- P(i);::P=Q
- Refutation
- R(b);XR(F)
- Try
- R(F);
- Threat
- R(F),XP(f)
- Vars
- R(b);OGATE::QAR(E)
- P(f);::R(F)
- Refutation
- R(b);CHECK
- Try
- Q(E);
- Vars
- R(b);OGATE,XR(F)::QAR(E)
- R(b);OGATE::QAR(E)
- P(a);::S(H)
- P(e);OGATE,P_SPINP(f)::QAR2(E),XP(f)
- P(f);OGATEB,P_SPINP(e)::QAR(E),XP(e)
- Refutation
- P(i);XP(D)
- Try
- Actual
- R(F);
- Vars
- R(b);OGATE,XR(F)::QAR(E)
- P(i);OGATE,XP(D)::QAB1(E)
- P(i);OGATE,XR(F)::QAB1(E)
- R(b);OGATE::QAR(E)
- P(a);::S(H)
- P(e);OGATE,P_SPINP(f)::R(F),XP(f)
- P(f);OGATEB,P_SPINP(e)::R(F),XP(e)
- P(i);OGATE::QAB1(E)
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).