MESON Chess Problem Database

Problem Display
PID: 53230 (8/BB2p3/1pR1P1P1/PP1NP1p1/1pK1kpQ1/1Rp1N1Pp/7P/8 w - - 0 1)

Candela Sanz, Rafael

1st HM., Chess Life, 1955

8/BB2p3/1pR1P1P1/PP1NP1p1/1pK1kpQ1/1Rp1N1Pp/7P/8

#2

15 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qf5#
  • Tries
    • 1.Sxc3+?
      • 1...Kxe3
        • 2.Qe2#
      • 1...Kxe5
        • 2.Qf5#
        • 2.Qxg5#
      • 1...bxc3!
    • 1.Sxb6?
      • 1...Kxe5
        • 2.Qf5#
      • 1...c2
        • 2.Rc5#
      • 1...Kxe3!
    • 1.Bxb6?
      • 1...Kxe5
        • 2.Qf5#
      • 1...c2!
    • 1.Rxb6?
      • 1...Kxe5
        • 2.Qf5#
      • 1...c2!
    • 1.Qf3+?
      • 1...Kxe5
        • 2.Bb8#
      • 1...Kxf3!
    • 1.Qxg5?
      • threat
        • 2.Qxf4#
      • 1...fxe3
        • 2.Qf4#
      • 1...fxg3
        • 2.Qf4#
        • 2.Qf5#
      • 1...f3
        • 2.Qf4#
        • 2.Qf5#
      • 1...Kf3!
    • 1.axb6?
      • 1...Kxe5
        • 2.Qf5#
      • 1...c2!
    • 1.a6?
      • 1...Kxe5
        • 2.Qf5#
      • 1...c2!
  • Keys
    • 1.Sxf4!
      • 1...Kxe3
        • 2.Qe2#
      • 1...Kxe5
        • 2.Qf5#
      • 1...gxf4
        • 2.Qxf4#
      • 1...bxa5
        • 2.Sd3#
      • 1...c2
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINP(e),P-FLIGHT,XP(J)::QAR1(F)
  • Tries
    • Try
      • S(I);CHECK,XP(a)
      • Vars
        • K(d);N_SPINP(e),P-FLIGHT,P_SPINP(g),XS(C)::QAR1(F)
      • Refutation
        • P(c);XS(I)
    • Try
      • S(I);XP(g)
      • Vars
        • K(d);N_SPINP(e),P-FLIGHT,XP(J)::QAR1(F)
        • P(a);::B(O)+R(K)
      • Refutation
        • K(d);N_SPINP(e),P-FLIGHT,P_SPINP(a),XS(C)
    • Try
      • B(N);XP(g)
      • Vars
        • K(d);N_SPINP(e),P-FLIGHT,XP(J)::QAR1(F)
      • Refutation
        • P(a);
    • Try
      • R(K);XP(g)
      • Vars
        • K(d);N_SPINP(e),P-FLIGHT,XP(J)::QAR1(F)
      • Refutation
        • P(a);
    • Try
      • Q(F);CHECK,N_PINP(e)
      • Vars
        • K(d);P-FLIGHT,XP(J)::B(N)
      • Refutation
        • K(d);S_FLIGHT,XQ(F)
    • Try
      • Q(F);N_PINP(e),XP(f)
      • Threat
        • QAR1(F),XP(e)
      • Vars
        • P(e);XS(C)::QAR1(F)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • P(G);XP(g)
      • Vars
        • K(d);N_SPINP(e),P-FLIGHT,XP(J)::QAR1(F)
      • Refutation
        • P(a);
    • Try
      • P(G);
      • Vars
        • K(d);N_SPINP(e),P-FLIGHT,XP(J)::QAR1(F)
      • Refutation
        • P(a);
  • Actual
    • S(I);XP(e)
    • Vars
      • K(d);OGATEB,P-FLIGHT,P_SPINP(a),XS(C)::QAR1(F)
      • K(d);P-FLIGHT,XP(J)::QAR1(F)
      • P(f);OGATE,P_SPINP(f),XS(I)::QAR1(F),XP(f)
      • P(g);XP(G)::QAR(F)+S(I)
      • P(a);::B(O)+R(K)
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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).