MESON Chess Problem Database
Problem Display
PID: 196377 (2Q1nB2/1pN3np/pPkbp2R/P7/P3N3/6R1/6BK/8 w - - 0 1)
Coello Alonso, Jose Antonio
BCPS Website, 2019
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Ba3
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 1...Bxg3+
- 2.Sxg3#
- 1...Bb4
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 1...Bf4
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 1...Bc5
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sxc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Be5
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 1...Bxc7
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 1...Sf5
- 2.Qxe8#
- 1...Sh5
- 2.Qxe8#
- 1...e5
- 2.Rc3#
- 1...Ba3
- Tries
- 1.Sxa6+?
- 1...Bc7
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 2.Sb4#
- 1...Sc7
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sec5#
- 2.Sg5#
- 2.Sxd6#
- 2.Sf6#
- 1...Kd5!
- 1...Bc7
- 1.Sxe6+?
- 1...Bc7
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.S4c5#
- 2.S4g5#
- 2.Sd6#
- 2.Sf6#
- 1...Sc7
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.S4c5#
- 2.S4g5#
- 2.Sxd6#
- 2.Sf6#
- 1...Kd5!
- 1...Bc7
- 1.Sxe8+?
- 1...Bc7
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.S4f6#
- 1...Kd5!
- 1...Bc7
- 1.Rh5?
- threat
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sxd6#
- 2.Sf6#
- 1...Bxg3+
- 2.Sxg3#
- 1...Bxc7
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 2.Rc5#
- 1...Bxf8
- 2.Sxe8#
- 1...Sxh5
- 2.Qxe8#
- 1...Ba3
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 2.Sxe8#
- 1...Bb4
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 2.Sxe8#
- 1...Bf4
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 2.Rc5#
- 1...Bc5
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sxc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 2.Sxe8#
- 2.Rxc5#
- 1...Be5
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 1...Be7
- 2.Sxe8#
- 1...Sf5
- 2.Qxe8#
- 1...Sf6
- 2.Sxf6#
- 1...e5!
- threat
- 1.Qxe6?
- 1...Sxc7
- 2.Qxd6#
- 1...Sf5
- 2.Qxe8#
- 1...Sh5
- 2.Qxe8#
- 1...Sf6
- 2.Qxd6#
- 1...Sxe6!
- 1...Sxc7
- 1.Sxa6+?
- Keys
- 1.Qd8!
- 1...Bxg3+
- 2.Sxg3#
- 1...Bxc7
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 1...Bxf8
- 2.Qd5#
- 1...Sxc7
- 2.Qxd6#
- 1...Ba3
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 2.Qd5#
- 1...Bb4
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 2.Qd5#
- 1...Bf4
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 2.Qd5#
- 1...Bc5
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sxc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 2.Qd5#
- 1...Be5
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sc5#
- 2.Sg5#
- 2.Sf6#
- 2.Qd5#
- 1...Be7
- 2.Qd5#
- 1...Sf5
- 2.Qxe8#
- 1...Sh5
- 2.Qxe8#
- 1...Sf6
- 2.Qxd6#
- 1...e5
- 2.Rc3#
- 1...Bxg3+
- 1.Qd8!
This is a version of 196376
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- B(c);CHECK,P_SPINP(d),XR(C)::B(A)+S(E),XB(c)
- S(f);N_GUARD::QAB(J),XS(h)
- P(d);N_PINR(C),P_SPINB(c)::R(C)
- Tries
- Try
- S(I);CHECK,XP(a)
- Refutation
- K(b);S_FLIGHT
- Try
- S(I);CHECK,XP(d)
- Refutation
- K(b);S_FLIGHT
- Try
- S(I);CHECK,XS(h)
- Refutation
- K(b);S_FLIGHT
- Try
- R(H);
- Threat
- DUALS(6)
- Vars
- B(c);CHECK,XR(C)::B(A)+S(E),XB(c)
- B(c);N_GUARD,N_PINR(C),XB(K)::QAR(J)+S(I),XS(h)
- S(f);N_GUARD,XR(H)::QAB(J),XS(h)
- B(c);N_GUARD,N_PINR(C)::QAR(J)+S(I),XS(h)
- S(f);N_GUARD::QAB(J),XS(h)
- S(h);::B(A)+S(E),XS(h)
- Refutation
- P(d);N_PINR(C)
- Try
- Q(J);P_PINB(c),XP(d)
- Vars
- S(h);N_GUARD,XS(I)::QAR1(J),XB(c)
- S(f);N_GUARD::QAB(J),XS(h)
- S(h);N_GUARD::QAR1(J),XB(c)
- Refutation
- S(f);N_SPINB(c),XQ(J)
- Try
- Actual
- Q(J);
- Vars
- B(c);CHECK,P_SPINP(d),XR(C)::B(A)+S(E),XB(c)
- B(c);N_PINR(C),OGATE,P_SPINP(d),XB(K)::QAB1(J)
- S(h);N_GUARD,XS(I)::QAR1(J),XB(c)
- B(c);N_PINR(C),OGATE,P_SPINP(d)::QAB1(J)
- S(f);N_GUARD::QAB(J),XS(h)
- S(h);N_GUARD::QAR1(J),XB(c)
- P(d);N_PINR(C),P_SPINB(c)::R(C)
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).