MESON Chess Problem Database
Problem Display
PID: 265738 (3Nr3/2r3B1/3pp3/1pp1q1Rp/R1bk4/2p2Q2/1nP1B2b/5K2 w - - 0 1)
Coello Alonso, Jose Antonio
Parcerisa-80 (Problemas), 2022
#2
8 + 13
SOLUTION
- SOUND
- Sets
- 1...Rc6
- 2.Sxc6#
- 1...Ra7
- 2.Sc6#
- 1...Rb7
- 2.Sc6#
- 1...Rd7
- 2.Sc6#
- 1...Rce7
- 2.Sc6#
- 1...Rf7
- 2.Sc6#
- 1...Rxg7
- 2.Sc6#
- 1...Rf8
- 2.Sxe6#
- 1...Rg8
- 2.Sxe6#
- 1...Rh8
- 2.Sxe6#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Rc6
- Tries
- 1.Rxc4+?
- 1...Sxc4
- 2.Qd3#
- 1...bxc4!
- 1...Sxc4
- 1.Rg4+?
- 1...Bf4
- 2.Rxf4#
- 1...hxg4!
- 1...Bf4
- 1.Rxc4+?
- Keys
- 1.Bd3!
- threat
- 2.Qe4#
- 1...Rxg7
- 2.Sc6#
- 1...Sxd3
- 2.Qxd3#
- 1...Qf6
- 2.Qf2#
- 1...Rf7
- 2.Sc6#
- 1...Rf8
- 2.Sxe6#
- 1...d5
- 2.Qf2#
- threat
- 1.Bd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(l);N_GUARD::S(H),XR(l)
- R(l);N_GUARD::S(H)
- R(l);N_GUARD,P_PINQ(D)::S(H)
- R(l);N_GUARD,N_SPINQ(h),XB(G)::S(H)
- R(m);N_GUARD,P_PINQ(D)::S(H),XP(k)
- R(m);N_GUARD::S(H),XP(k)
- S(a);N_GUARD::QAR1(D)
- S(a);N_GUARD,N_PINB(C)::QAR1(D),XS(a)
- Tries
- Try
- R(E);CHECK,N_SPINB(C),XB(d)
- Vars
- S(a);XR(E)::QAR1(D)
- Refutation
- P(f);XR(E)
- Try
- R(F);CHECK
- Vars
- B(b);N_GUARD::R(F),XB(b)
- Refutation
- P(i);XR(F)
- Try
- Actual
- B(C);
- Threat
- QAR1(D)
- Vars
- R(l);N_GUARD,N_SPINQ(h),XB(G)::S(H)
- S(a);OGATE,XB(C)::QAR1(D),XS(a)
- Q(h);P_PINQ(D)::QAB(D)
- R(l);N_GUARD,P_PINQ(D)::S(H)
- R(m);N_GUARD,P_PINQ(D)::S(H),XP(k)
- P(j);SBLOCK::QAB(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).