MESON Chess Problem Database
Problem Display
PID: 238998 (2B5/8/2p5/1nNn4/2k1N3/1RPR4/2p5/K1Q5 w - - 0 1)
Petite, Efren
Problemas, 2014
#2
8 + 5
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sa3
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sd6
- 2.Rd4#
- 1...Sa7
- 2.Rd4#
- 1...Sbc7
- 2.Rd4#
- 1...Se3
- 2.Rb4#
- 1...Sb4
- 2.Rxb4#
- 1...Sf4
- 2.Rb4#
- 1...Sb6
- 2.Rb4#
- 1...Sf6
- 2.Rb4#
- 1...Sdc7
- 2.Rb4#
- 1...Se7
- 2.Rb4#
- 1...Sa3
- Tries
- 1.Rxb5?
- threat
- 2.Sd6#
- 1...cxb5
- 2.Rd4#
- 1...Kxb5!
- threat
- 1.Rxb5?
- Keys
- 1.Qxc2!
- 1...Sbxc3
- 2.Ba6#
- 1...Sdxc3
- 2.Be6#
- 1...Sa3
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sd6
- 2.Rd4#
- 1...Sa7
- 2.Rd4#
- 1...Sbc7
- 2.Rd4#
- 1...Se3
- 2.Rb4#
- 1...Sb4
- 2.Rxb4#
- 1...Sf4
- 2.Rb4#
- 1...Sb6
- 2.Rb4#
- 1...Sf6
- 2.Rb4#
- 1...Sdc7
- 2.Rb4#
- 1...Se7
- 2.Rb4#
- 1...Sbxc3
- 1.Qxc2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::R1(E)
- S(c);N_GUARD::R1(E),XS(c)
- S(d);N_GUARD::R1(C)
- S(d);N_GUARD::R1(C),XS(d)
- Tries
- Try
- R(C);XS(c)
- Threat
- S(F)
- Vars
- P(e);SBLOCK,XR(C)::R1(E)
- Refutation
- K(b);S_FLIGHT,XR(C)
- Try
- Actual
- Q(B);XP(a)
- Vars
- S(c);OGATEB,P_SPINS(c),XP(D)::B(H)
- S(d);OGATEB,P_SPINS(d),XP(D)::B(H)
- S(c);N_GUARD::R1(E)
- S(c);N_GUARD::R1(E),XS(c)
- S(d);N_GUARD::R1(C)
- S(d);N_GUARD::R1(C),XS(d)
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).