MESON Chess Problem Database

Problem Display
PID: 18318 (8/5p1p/5B1P/p1P2k2/Rp2N1N1/7Q/6P1/K7 w - - 0 1)

Wright Wood, S (= Wood, SW)

Time & Tide, 1954

8/5p1p/5B1P/p1P2k2/Rp2N1N1/7Q/6P1/K7

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qf3#
    • 1...Kf4
      • 2.Qf3#
    • 1...Ke6
      • 2.Se3#
    • 1...Kg6
      • 2.Se5#
  • Tries
    • 1.Kb1?
      • 1...Kxe4
        • 2.Qf3#
      • 1...Kf4
        • 2.Qf3#
      • 1...Ke6
        • 2.Se3#
      • 1...Kg6
        • 2.Se5#
      • 1...b3!
    • 1.Ka2?
      • 1...Kxe4
        • 2.Qf3#
      • 1...Kf4
        • 2.Qf3#
      • 1...Ke6
        • 2.Se3#
      • 1...Kg6
        • 2.Se5#
      • 1...b3+!
    • 1.Kb2?
      • 1...Kxe4
        • 2.Qf3#
      • 1...Kf4
        • 2.Qf3#
      • 1...Ke6
        • 2.Se3#
      • 1...Kg6
        • 2.Se5#
      • 1...b3!
    • 1.Sg5?
      • 1...Kf4
        • 2.Qf3#
      • 1...b3
        • 2.Qd3#
      • 1...Kg6!
    • 1.Sgf2+?
      • 1...Kf4
        • 2.Qf3#
      • 1...Kg6!
    • 1.Sh2+?
      • 1...Kxe4
        • 2.Qf3#
      • 1...Kf4
        • 2.Qf3#
      • 1...Kg6!
    • 1.Se5+?
      • 1...Kf4
        • 2.Qf3#
      • 1...Kxe4!
    • 1.Rxa5?
      • 1...Kxe4
        • 2.Qf3#
      • 1...Kf4
        • 2.Qf3#
      • 1...Ke6
        • 2.Se3#
      • 1...Kg6
        • 2.Se5#
      • 1...b3!
    • 1.Qb3?
      • 1...Kxe4
        • 2.Qf3#
      • 1...Kf4
        • 2.Qf3#
      • 1...Kxg4
        • 2.Qf3#
      • 1...Kg6!
    • 1.g3?
      • 1...Ke6
        • 2.Se3#
      • 1...Kg6
        • 2.Se5#
      • 1...b3
        • 2.Se5#
      • 1...Kxe4!
    • 1.c6?
      • 1...Kxe4
        • 2.Qf3#
      • 1...Kf4
        • 2.Qf3#
      • 1...Ke6
        • 2.Se3#
      • 1...Kg6
        • 2.Se5#
      • 1...b3!
  • Keys
    • 1.Qd3!
      • 1...Kf4
        • 2.Qf3#
      • 1...Kxg4
        • 2.Qf3#
      • 1...Ke6
        • 2.Sg5#
      • 1...Kg6
        • 2.Sg3#
      • 1...b3
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(c);P_SPINP(a),S_FLIGHT,XS(E)::QAB1(C)
    • K(c);P-FLIGHT::QAR1(C)
    • K(c);S_FLIGHT::QAB(C)+S(F)
    • K(c);S_FLIGHT::S(F)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT,XS(E)::QAB1(C)
        • K(c);P-FLIGHT::QAR1(C)
        • K(c);S_FLIGHT::QAB(C)+S(F)
        • K(c);S_FLIGHT::S(F)
      • Refutation
        • P(a);
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT,XS(E)::QAB1(C)
        • K(c);P-FLIGHT::QAR1(C)
        • K(c);S_FLIGHT::QAB(C)+S(F)
        • K(c);S_FLIGHT::S(F)
      • Refutation
        • P(a);CHECK
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT,XS(E)::QAB1(C)
        • K(c);P-FLIGHT::QAR1(C)
        • K(c);S_FLIGHT::QAB(C)+S(F)
        • K(c);S_FLIGHT::S(F)
      • Refutation
        • P(a);
    • Try
      • S(E);
      • Vars
        • K(c);P-FLIGHT,P_SPINP(a)::QAR1(C)
        • P(a);::QAB(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT,XS(E)::QAB1(C)
        • K(c);P-FLIGHT::QAR1(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(C)
      • Refutation
        • K(c);P_SPINP(a),S_FLIGHT,XS(E)
    • Try
      • R(D);XP(b)
      • Vars
        • K(c);S_FLIGHT,XS(E)::QAB1(C)
        • K(c);P-FLIGHT::QAR1(C)
        • K(c);S_FLIGHT::QAB(C)+S(F)
        • K(c);S_FLIGHT::S(F)
      • Refutation
        • P(a);
    • Try
      • Q(C);
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT,XS(E)::QAB1(C)
        • K(c);P-FLIGHT::QAR1(C)
        • K(c);S_FLIGHT,XS(F)::QAB1(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(B);
      • Vars
        • K(c);S_FLIGHT::QAB(C)+S(F)
        • K(c);S_FLIGHT::S(F)
        • P(a);::QAB(C)+S(F)
      • Refutation
        • K(c);P_SPINP(a),S_FLIGHT,XS(E)
    • Try
      • P(G);
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT,XS(E)::QAB1(C)
        • K(c);P-FLIGHT::QAR1(C)
        • K(c);S_FLIGHT::QAB(C)+S(F)
        • K(c);S_FLIGHT::S(F)
      • Refutation
        • P(a);
  • Actual
    • Q(C);
    • Vars
      • K(c);P-FLIGHT::QAR1(C)
      • K(c);S_FLIGHT,XS(F)::QAB1(C)
      • K(c);S_FLIGHT::S(E)
      • K(c);S_FLIGHT::QAB(C)+S(E)
      • P(a);::QAB(C)+S(E)
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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).