MESON Chess Problem Database
Problem Display
PID: 241481 (8/4p3/4Pp2/p1pP4/Rb3kNP/2B2pn1/1p1RpN1Q/1B2K3 w - - 0 1)
Hjelle, David
Revista Romana de Sah, 1967
#2
11 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...c4
- 2.Rd4#
- 1...f5
- 2.Be5#
- 1...c4
- Tries
- 1.Bxb2?
- 1...f5
- 2.Be5#
- 1...c4!
- 1...f5
- 1.Bxb4?
- threat
- 2.Bxc5#
- 1...cxb4
- 2.Rd4#
- 1...c4
- 2.Rd4#
- 1...axb4!
- threat
- 1.Rxb4+?
- 1...cxb4
- 2.Rd4#
- 1...c4
- 2.Rd4#
- 2.Rxc4#
- 1...axb4!
- 1...cxb4
- 1.d6?
- 1...c4
- 2.Rd4#
- 1...f5
- 2.Be5#
- 1...exd6!
- 1...c4
- 1.Bxb2?
- Keys
- 1.Rd3!
- 1...Kf5
- 2.Rxf3#
- 1...c4
- 2.Rd4#
- 1...f5
- 2.Bd2#
- 1...Kf5
- 1.Rd3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- P(h);N_GUARD,N_SPINB(e)::R(C)
- P(i);N_GUARD::B(F)
- Tries
- Try
- B(F);P_SPINR(C),XP(a)
- Vars
- P(i);N_GUARD::B(F)
- Refutation
- P(h);N_SPINB(e)
- Try
- B(F);XB(e)
- Threat
- R(G)+B(F),XP(h)
- Vars
- P(h);N_GUARD,P_SPINP(h),XB(F)::R(C)
- P(h);N_GUARD::R(C)
- Refutation
- P(g);P_SPINP(g),XB(F)
- Try
- R(G);CHECK,XB(e)
- Vars
- P(h);N_GUARD,XR(G)::R(C)
- Refutation
- P(g);XR(G)
- Try
- P(J);
- Vars
- P(h);N_GUARD,N_SPINB(e)::R(C)
- P(i);N_GUARD::B(F)
- Refutation
- P(j);XP(J)
- Try
- Actual
- R(C);P_SPINB(F)
- Vars
- K(f);N_SPINB(e),N_SPINS(d),P-FLIGHT::B(A)+R(C),DCHECK,XP(c)
- P(h);N_GUARD,N_SPINB(e)::R(C)
- P(i);SBLOCK::B(F)
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).