MESON Chess Problem Database
Problem Display
PID: 238684 (6B1/2N5/1P2r3/b1Nrp3/RPkp1n2/3p4/K2B4/8 w - - 0 1)
Ahues, Herbert Siegfried Oskar
L'Italia Scacchistica, 2010
#2
8 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxc5
- 2.bxa5#
- 1...Rxc5
- Tries
- 1.Sb3?
- threat
- 2.bxa5#
- 1...Rxb6
- 2.Sxa5#
- 1...Bxb4
- 2.Rxb4#
- 1...Bxb6
- 2.b5#
- 1...Rb5!
- threat
- 1.Se4?
- threat
- 2.bxa5#
- 1...Bxb4
- 2.Rxb4#
- 1...Bxb6
- 2.b5#
- 1...Rb5
- 2.Sd6#
- 1...Rxb6!
- threat
- 1.Sb3?
- Keys
- 1.Sb7!
- threat
- 2.bxa5#
- 1...Rxb6
- 2.Sxa5#
- 1...Bxb4
- 2.Rxb4#
- 1...Bxb6
- 2.b5#
- 1...Rb5
- 2.Sd6#
- threat
- 1.Sb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(f);P_SPINR(h),SBLOCK,XS(E)::R(C)+P(D),XB(e)
- Tries
- Try
- S(E);
- Threat
- R(C)+P(D),XB(e)
- Vars
- R(h);P_SPINR(f),XP(F)::S(E),XB(e)
- B(e);OGATE,P_SPINB(e),XP(D)::R1(C),XB(e)
- B(e);N_GUARD,XP(F)::R(C)+P(D)
- Refutation
- R(f);P_SPINR(h)
- Try
- S(E);
- Threat
- R(C)+P(D),XB(e)
- Vars
- B(e);OGATE,P_SPINB(e),XP(D)::R1(C),XB(e)
- B(e);N_GUARD,XP(F)::R(C)+P(D)
- R(f);N_GUARD,P_SPINR(h)::S(E)
- Refutation
- R(h);P_SPINR(f),XP(F)
- Try
- Actual
- S(E);
- Threat
- R(C)+P(D),XB(e)
- Vars
- R(h);P_SPINR(f),XP(F)::S(E),XB(e)
- B(e);OGATE,P_SPINB(e),XP(D)::R1(C),XB(e)
- B(e);N_GUARD,XP(F)::R(C)+P(D)
- R(f);N_GUARD,P_SPINR(h)::S(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).