MESON Chess Problem Database
Problem Display
PID: 267740 (4n3/1Np3p1/1bn1B3/p7/4k1r1/4P3/3KR1PQ/B7 w - - 0 1)
Puig Ambros, Estanislao
El Diluvio, 1933
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Rxg2
- 2.Qf4#
- 2.Qxg2#
- 1...Rf4
- 2.Qxf4#
- 1...Rh4
- 2.Qxh4#
- 1...Rg5
- 2.Qf4#
- 1...Rg6
- 2.Qf4#
- 1...Bxe3+
- 2.Rxe3#
- 1...Bd4
- 2.exd4#
- 1...Bc5
- 2.Sxc5#
- 1...Sb4
- 2.Qe5#
- 1...Sd4
- 2.exd4#
- 1...Se5
- 2.Qxe5#
- 1...Sa7
- 2.Qe5#
- 1...Se7
- 2.Qe5#
- 1...Sb8
- 2.Qe5#
- 1...Sd8
- 2.Qe5#
- 1...g5
- 2.Qh7#
- 1...Rxg2
- Tries
- 1.Qg3?
- threat
- 2.Qf3#
- 2.Qxg4#
- 1...Bxe3+
- 2.Rxe3#
- 2.Qxe3#
- 1...Rf4
- 2.Qxf4#
- 1...Rh4
- 2.Qxh4#
- 2.Qf3#
- 2.Qg6#
- 1...Rg5
- 2.Qf4#
- 2.Qf3#
- 1...Rg6
- 2.Qf4#
- 2.Qf3#
- 2.Qxg6#
- 1...Bd4
- 2.exd4#
- 1...Sd4
- 2.exd4#
- 1...Se5
- 2.Qxe5#
- 1...Sf6
- 2.Qf3#
- 1...Rxg3!
- threat
- 1.Qh5?
- threat
- 2.Bd5#
- 2.Qxg4#
- 2.Qd5#
- 2.Qf5#
- 1...Rxg2
- 2.Bd5#
- 2.Qd5#
- 2.Qf5#
- 1...Rg3
- 2.Bd5#
- 2.Qd5#
- 2.Qf5#
- 1...Rf4
- 2.Bd5#
- 2.Qd5#
- 1...Rh4
- 2.Bd5#
- 2.Qf3#
- 2.Qg6#
- 2.Qxh4#
- 2.Qd5#
- 2.Qf5#
- 1...Rg5
- 2.Qf3#
- 1...Rg6
- 2.Bd5#
- 2.Qf3#
- 2.Qxg6#
- 2.Qd5#
- 2.Qf5#
- 1...Bd4
- 2.Bd5#
- 2.Qd5#
- 2.Qf5#
- 1...Sb4
- 2.Qxg4#
- 2.Qe5#
- 2.Qf5#
- 1...Sd4
- 2.Bd5#
- 2.Qd5#
- 1...Se5
- 2.Qxe5#
- 2.Qf5#
- 1...Se7
- 2.Qxg4#
- 2.Qe5#
- 1...Sd6
- 2.Bd5#
- 2.Qxg4#
- 2.Qd5#
- 1...Sf6
- 2.Qf5#
- 1...g5
- 2.Qxg4#
- 2.Qg6#
- 2.Qh7#
- 1...g6
- 2.Bd5#
- 2.Qxg4#
- 2.Qd5#
- 1...Bxe3+!
- threat
- 1.Qh7+?
- 1...Rg6
- 2.Qxg6#
- 1...g6!
- 1...Rg6
- 1.Qg3?
- Keys
- 1.Qxc7!
- threat
- 2.Qxc6#
- 1...Bxe3+
- 2.Rxe3#
- 1...Bxc7
- 2.Sc5#
- 1...Sxc7
- 2.Sd6#
- 1...Rg5
- 2.Qf4#
- 1...Bd4
- 2.exd4#
- 1...Sb4
- 2.Qe5#
- 1...Sd4
- 2.exd4#
- 1...Se5
- 2.Qxe5#
- 1...Sa7
- 2.Qe5#
- 2.Qc2#
- 1...Se7
- 2.Qe5#
- 2.Qc2#
- 1...Sb8
- 2.Qe5#
- 2.Qc2#
- 1...Sd8
- 2.Qe5#
- 2.Qc2#
- 1...Sf6
- 2.Sd6#
- threat
- 1.Qxc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- R(b);N_GUARD::QAR1(E),XR(b)
- R(b);OGATEB::QAR(E),XR(b)
- R(b);N_GUARD::QAR1(E)
- B(d);CHECK,OGATE,P_SPINB(d),XP(F)::R1(C),XB(d)
- B(d);OGATE::R(C)+P(F),XB(d)
- B(d);N_GUARD::S(H),XB(d)
- S(e);N_GUARD::QAR1(E)
- S(e);OGATE::R(C)+P(F),XS(e)
- S(e);N_GUARD::QAR1(E),XS(e)
- P(g);N_GUARD,S_CUTR(b)::QAB(E)
- Tries
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD::QAR1(E),XR(b)
- B(d);OGATE::R(C)+P(F),XB(d)
- S(e);OGATE::R(C)+P(F),XS(e)
- S(e);N_GUARD::QAR1(E),XS(e)
- S(h);::QAB1(E)
- Refutation
- R(b);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(4)
- Vars
- R(b);OGATE::QAB1(E)
- S(h);::QAB1(E)
- Refutation
- B(d);CHECK,P_SPINB(d),XP(F)
- Try
- Q(E);CHECK
- Vars
- R(b);N_GUARD,P_SPINR(b)::QAB(E),XR(b)
- Refutation
- P(g);P_SPINP(g)
- Try
- Actual
- Q(E);XP(f)
- Threat
- QAB(E),XS(e)
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),XP(F)::R1(C),XB(d)
- B(d);N_GUARD,XQ(E)::S(H)
- S(h);N_GUARD,XQ(E)::S(H)
- R(b);N_GUARD::QAR1(E)
- B(d);OGATE::R(C)+P(F),XB(d)
- S(e);N_GUARD::QAR1(E)
- S(e);OGATE::R(C)+P(F),XS(e)
- S(e);N_GUARD::QAR1(E),XS(e)
- S(h);N_GUARD::S(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).