MESON Chess Problem Database
Problem Display
PID: 180478 (7R/B7/8/5P2/2p3p1/2KP1PP1/2P3P1/3QNkr1 w - - 0 1)
Lider, Valentin Viktorovich
Probleemblad, 1991
#2
11 + 4
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Rxh1#
- 1...Rh1
- Tries
- 1.Re8?
- threat
- 2.Qe2#
- 1...cxd3
- 2.Qxd3#
- 1...gxf3
- 2.Qxf3#
- 1...Rxg2!
- threat
- 1.dxc4?
- 1...Rxg2
- 2.Sd3#
- 1...Rh1
- 2.Rxh1#
- 1...gxf3!
- 1...Rxg2
- 1.fxg4?
- 1...Rxg2
- 2.Sf3#
- 1...Rh1
- 2.Rxh1#
- 1...cxd3!
- 1...Rxg2
- 1.f4?
- 1...Rxg2
- 2.Sf3#
- 1...Rh1
- 2.Rxh1#
- 1...cxd3!
- 1...Rxg2
- 1.Re8?
- Keys
- 1.Rh2!
- 1...Rxg2
- 2.Sxg2#
- 1...cxd3
- 2.Sxd3#
- 1...gxf3
- 2.Sxf3#
- 1...Rh1
- 2.Rxh1#
- 1...Rxg2
- 1.Rh2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(b);OGATEB::R(K),XR(b)
- Tries
- Try
- R(K);
- Threat
- QAB1(A)
- Vars
- P(c);OGATE,XP(F)::QAB(A),XP(c)
- P(d);OGATE,XP(G)::QAR2(A),XP(d)
- Refutation
- R(b);XP(D)
- Try
- P(F);XP(c)
- Vars
- R(b);SBLOCK,XP(D)::QAR(A)+S(B)
- R(b);OGATEB::R(K),XR(b)
- Refutation
- P(d);XP(G)
- Try
- P(G);XP(d)
- Vars
- R(b);SBLOCK,XP(D)::QAR(A)+S(B)
- R(b);OGATEB::R(K),XR(b)
- Refutation
- P(c);XP(F)
- Try
- P(G);
- Vars
- R(b);SBLOCK,XP(D)::QAR(A)+S(B)
- R(b);OGATEB::R(K),XR(b)
- Refutation
- P(c);XP(F)
- Try
- Actual
- R(K);
- Vars
- R(b);XP(D)::QAR(A)+S(B),XR(b)
- P(c);XP(F)::QAR(A)+S(B),XP(c)
- P(d);XP(G)::QAR(A)+S(B),XP(d)
- R(b);OGATEB::R(K),XR(b)
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).