MESON Chess Problem Database
Problem Display
PID: 102042 (5Br1/5Rb1/6Pk/4PQ1p/4Pp2/5P1n/6R1/4K3 w - - 0 1)
Godbout, Alain J
LeSoleil, 1980
#2
9 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rh8
- 2.Bxg7#
- 1...Bxf8
- 2.Rh7#
- 1...Sg1
- 2.Qxf4#
- 2.Qg5#
- 1...Sf2
- 2.Qxf4#
- 2.Qg5#
- 1...Sg5
- 2.Qxg5#
- 1...Rh8
- Tries
- 1.Rg5?
- threat
- 2.Rxh5#
- 1...h4
- 2.Rh5#
- 1...Sxg5!
- threat
- 1.Rxg7?
- threat
- 2.Rh7#
- 2.Rxg8#
- 1...Rxf8
- 2.Rh7#
- 1...Rh8
- 2.Rh7#
- 2.Rg8#
- 1...Rxg7!
- threat
- 1.Qxh3?
- 1...Bxf8
- 2.Rh7#
- 1...h4
- 2.Qxh4#
- 1...Rh8
- 2.Bxg7#
- 1...Rxf8!
- 1...Bxf8
- 1.Qxf4+?
- 1...Sg5
- 2.Qxg5#
- 1...Sxf4!
- 1...Sg5
- 1.Rg5?
- Keys
- 1.Qf6!
- 1...Rxf8
- 2.Qxg7#
- 1...Bxf8
- 2.Rh7#
- 1...h4
- 2.Qxh4#
- 1...Rh8
- 2.Bxg7#
- 2.Qxg7#
- 1...Sg1
- 2.Qg5#
- 2.Qxf4#
- 1...Sf2
- 2.Qg5#
- 2.Qxf4#
- 1...Sg5
- 2.Qxg5#
- 1...Rxf8
- 1.Qf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(f);N_GUARD::B(I),XB(e)
- B(e);N_SPINB(e),OGATE,XB(I)::R1(H)
- S(a);N_GUARD::QAB1(F),XS(a)
- Tries
- Try
- R(B);
- Threat
- R1(B),XP(c)
- Vars
- P(c);::R1(B)
- Refutation
- S(a);XR(B)
- Try
- R(H);XB(e)
- Threat
- DUALS(2)
- Vars
- R(f);XB(I)::R1(H)
- Refutation
- R(f);P_SPINR(f),XR(H)
- Try
- Q(F);P_PINP(c),XS(a)
- Vars
- B(e);N_SPINB(e),OGATE,XB(I)::R1(H)
- P(c);OGATEB::QAR2(F),XP(c)
- R(f);N_GUARD::B(I),XB(e)
- Refutation
- R(f);N_SPINB(e),XB(I)
- Try
- Q(F);CHECK,XP(b)
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAB1(F),XS(a)
- Refutation
- S(a);XQ(F)
- Try
- Actual
- Q(F);
- Vars
- R(f);N_GUARD,N_SPINB(e),XB(I)::QAB1(F),XB(e)
- B(e);N_SPINB(e),OGATE,XB(I)::R1(H)
- P(c);OGATEB::QAR2(F),XP(c)
- S(a);N_GUARD::QAB1(F),XS(a)
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).