MESON Chess Problem Database

Problem Display
PID: 102522 (8/p1p2Q2/K1P1P3/2pkp3/N1RbR1p1/2pNp1P1/2P1P3/8 w - - 0 1)

Delaliau, Emmanuel

Europe Echecs, 1959

8/p1p2Q2/K1P1P3/2pkp3/N1RbR1p1/2pNp1P1/2P1P3/8

#2

11 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.e7#
    • 1...Kxe4
      • 2.Sxc3#
    • 1...Kxc6
      • 2.Qd7#
    • 1...Kd6
      • 2.Qd7#
  • Tries
    • 1.Kxa7?
      • 1...Kxe4
        • 2.Sxc3#
      • 1...Kxc6
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#
      • 1...Kxc4!
    • 1.Sc1?
      • 1...Kxe4
        • 2.Sxc3#
      • 1...Kxc6
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#
      • 1...Kxc4!
    • 1.Se1?
      • 1...Kxe4
        • 2.Sxc3#
      • 1...Kxc6
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#
      • 1...Kxc4!
    • 1.Sdb2?
      • 1...Kxe4
        • 2.Sxc3#
      • 1...Kxc6
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#
      • 1...cxb2!
    • 1.Sxc3+?
      • 1...Kxc6
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#
      • 1...Bxc3
        • 2.Qd7#
      • 1...Kxc4!
    • 1.Saxc5?
      • 1...Kxc4
        • 2.e7#
      • 1...Kxc6
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#
      • 1...Bxc5!
    • 1.Rxc5+?
      • 1...Kxe4
        • 2.Qg6#
        • 2.Qh7#
      • 1...Kd6
        • 2.Qd7#
      • 1...Bxc5!
    • 1.Rxg4?
      • 1...Kxc4
        • 2.e7#
      • 1...Kxc6
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#
      • 1...e4!
    • 1.Rxe5+?
      • 1...Kxc4
        • 2.e7#
      • 1...Kxc6
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#
      • 1...Bxe5!
    • 1.Qe7?
      • 1...Kxc4
        • 2.Qxc5#
      • 1...Kxc6
        • 2.Sb4#
        • 2.Qd7#
      • 1...Kxe4!
    • 1.e7+?
      • 1...Kxe4
        • 2.Sdxc5#
        • 2.Sxc3#
        • 2.Saxc5#
      • 1...Kxc6
        • 2.Qe6#
      • 1...Kd6!
  • Keys
    • 1.Qf8!
      • 1...Kxc4
        • 2.Qxc5#
      • 1...Kxe4
        • 2.Sxc3#
      • 1...Kxc6
        • 2.Sb4#
      • 1...Kxe6
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(f);P_SPINB(c),S_FLIGHT,XR(F)::QAB(K)+P(J)
    • K(f);P_SPINB(c),S_FLIGHT,XR(G)::S(E),XP(a)
    • K(f);P_SPINP(e),S_FLIGHT,XP(I)::QAB1(K)
    • K(f);P-FLIGHT::QAR1(K)
  • Tries
    • Try
      • K(H);P-FLIGHT,XP(h)
      • Vars
        • K(f);P_SPINB(c),S_FLIGHT,XR(G)::S(E),XP(a)
        • K(f);P_SPINP(e),S_FLIGHT,XP(I)::QAB1(K)
        • K(f);P-FLIGHT::QAR1(K)
      • Refutation
        • K(f);P_SPINB(c),S_FLIGHT,XR(F)
    • Try
      • S(C);
      • Vars
        • K(f);P_SPINB(c),S_FLIGHT,XR(G)::S(E),XP(a)
        • K(f);P_SPINP(e),S_FLIGHT,XP(I)::QAB1(K)
        • K(f);P-FLIGHT::QAR1(K)
      • Refutation
        • K(f);P_SPINB(c),S_FLIGHT,XR(F)
    • Try
      • S(C);
      • Vars
        • K(f);P_SPINB(c),S_FLIGHT,XR(G)::S(E),XP(a)
        • K(f);P_SPINP(e),S_FLIGHT,XP(I)::QAB1(K)
        • K(f);P-FLIGHT::QAR1(K)
      • Refutation
        • K(f);P_SPINB(c),S_FLIGHT,XR(F)
    • Try
      • S(C);
      • Vars
        • K(f);P_SPINB(c),S_FLIGHT,XR(G)::S(E),XP(a)
        • K(f);P_SPINP(e),S_FLIGHT,XP(I)::QAB1(K)
        • K(f);P-FLIGHT::QAR1(K)
      • Refutation
        • P(a);XS(C)
    • Try
      • S(E);CHECK,XP(a)
      • Vars
        • K(f);P_SPINP(e),S_FLIGHT,XP(I)::QAB1(K)
        • K(f);P-FLIGHT::QAR1(K)
        • B(c);XS(E)::QAR2(K)
      • Refutation
        • K(f);P_SPINB(c),S_FLIGHT,XR(F)
    • Try
      • S(E);XP(e)
      • Vars
        • K(f);P_SPINB(c),S_FLIGHT,XR(F)::QAB(K)+P(J)
        • K(f);S_FLIGHT,XP(I)::QAB1(K)
        • K(f);P-FLIGHT::QAR1(K)
      • Refutation
        • B(c);XS(E)
    • Try
      • R(F);CHECK,XP(e)
      • Vars
        • K(f);P-FLIGHT::QAR1(K)
      • Refutation
        • B(c);XR(F)
    • Try
      • R(G);XP(d)
      • Vars
        • K(f);P_SPINB(c),S_FLIGHT,XR(F)::QAB(K)+P(J)
        • K(f);P_SPINP(e),S_FLIGHT,XP(I)::QAB1(K)
        • K(f);P-FLIGHT::QAR1(K)
      • Refutation
        • P(g);
    • Try
      • R(G);CHECK,XP(g)
      • Vars
        • K(f);S_FLIGHT,XR(F)::QAB(K)+P(J)
        • K(f);P_SPINP(e),S_FLIGHT,XP(I)::QAB1(K)
        • K(f);P-FLIGHT::QAR1(K)
      • Refutation
        • B(c);XR(G)
    • Try
      • Q(K);
      • Vars
        • K(f);P_SPINB(c),S_FLIGHT,XR(F)::QAR1(K),XP(e)
      • Refutation
        • K(f);P_SPINB(c),S_FLIGHT,XR(G)
    • Try
      • P(J);CHECK
      • Vars
        • K(f);P_SPINP(e),S_FLIGHT,XP(I)::QAR2(K)
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • Q(K);
    • Vars
      • K(f);P_SPINB(c),S_FLIGHT,XR(F)::QAR1(K),XP(e)
      • K(f);P_SPINB(c),S_FLIGHT,XR(G)::S(E),XP(a)
      • K(f);P_SPINP(e),S_FLIGHT,XP(I)::S(C)
      • K(f);P_SPINP(g),S_FLIGHT,XP(J)::S(C)
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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).