MESON Chess Problem Database
Problem Display
PID: 239034 (2b2K1B/1n1N1Q1B/1Np4R/p3p3/3k1q1R/8/3P4/4rr2 w - - 0 1)
Petite, Efren
Problemas, 2014
#2
9 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Bxe5#
- 1...Rb1
- 2.Bxe5#
- 1...Rc1
- 2.Bxe5#
- 1...Rd1
- 2.Bxe5#
- 1...Sc5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sd8
- 2.Rd6#
- 1...Ra1
- Tries
- 1.Ke7?
- threat
- 2.Qc4#
- 1...Rc1
- 2.Bxe5#
- 1...Sd6
- 2.Rxd6#
- 1...Qxh4+!
- threat
- 1.Ke8?
- threat
- 2.Qc4#
- 1...Sd6+
- 2.Rxd6#
- 1...Rc1
- 2.Bxe5#
- 1...Bxd7+!
- threat
- 1.Bf6?
- threat
- 2.Qc4#
- 1...Rc1
- 2.Bxe5#
- 1...Sd6!
- threat
- 1.Rxf4+?
- 1...Re4
- 2.Qc4#
- 1...Rxf4!
- 1...Re4
- 1.Rf6?
- threat
- 2.Qc4#
- 1...Sd6
- 2.Rxd6#
- 1...Rc1!
- threat
- 1.Ke7?
- Keys
- 1.Bf5!
- threat
- 2.Qc4#
- 1...Rc1
- 2.Bxe5#
- 1...Sd6
- 2.Rxd6#
- threat
- 1.Bf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- R(a);N_GUARD::B(I),XP(f)
- S(h);N_GUARD::R(D)
- S(h);N_GUARD::R(D),XS(h)
- Tries
- Try
- K(H);N_SPINQ(F),S_FLIGHT
- Threat
- QAR1(F)
- Vars
- R(a);N_GUARD::B(I),XP(f)
- S(h);N_GUARD::R(D),XS(h)
- Refutation
- Q(d);CHECK,N_SPINQ(d),XR(B)
- Try
- K(H);N_SPINQ(F),P-FLIGHT
- Threat
- QAR1(F)
- Vars
- S(h);CHECK,N_GUARD::R(D),XS(h)
- R(a);N_GUARD::B(I),XP(f)
- Refutation
- B(i);CHECK,XS(E)
- Try
- B(I);N_SPINQ(F)
- Threat
- QAR1(F)
- Vars
- R(a);N_GUARD::B(I),XP(f)
- Refutation
- S(h);
- Try
- R(B);CHECK,N_SPINQ(F),XQ(d)
- Vars
- R(a);P_SPINR(a)::QAR1(F)
- Refutation
- R(b);P_PINQ(F),XR(B)
- Try
- R(D);N_PINP(f),N_SPINQ(F)
- Threat
- QAR1(F)
- Vars
- S(h);N_GUARD::R(D),XS(h)
- Refutation
- R(a);
- Try
- Actual
- B(G);N_SPINQ(F)
- Threat
- QAR1(F)
- Vars
- R(a);N_GUARD::B(I),XP(f)
- S(h);N_GUARD::R(D),XS(h)
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).