MESON Chess Problem Database

Problem Display
PID: 132814 (6r1/P2p3B/K2Q2r1/P2p4/8/1pNkNp2/RP1b1P2/3R2B1 w - - 0 1)

Boyer, Jean-Pierre

3rd HM., Problemas, 1982

6r1/P2p3B/K2Q2r1/P2p4/8/1pNkNp2/RP1b1P2/3R2B1

#2

12 + 8

3485 Sachova skladba 1985

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Rxd2#
  • Tries
    • 1.Kb7?
      • threat
        • 2.Qxd5#
      • 1...Kd4
        • 2.Rxd2#
        • 2.Qxd5#
      • 1...d4
        • 2.Qa6#
      • 1...Rb8+!
    • 1.Sexd5?
      • threat
        • 2.Se3#
      • 1...Kc2
        • 2.Sb4#
      • 1...Kc4
        • 2.Sb6#
      • 1...Kd4!
    • 1.Bxg6+?
      • 1...Kd4
        • 2.Sb5#
        • 2.Rxd2#
        • 2.Ra4#
        • 2.Qxd5#
      • 1...Rxg6!
    • 1.a8Q?
      • threat
        • 2.Qxd5#
      • 1...Kd4
        • 2.Rxd2#
        • 2.Qxd5#
      • 1...d4
        • 2.Qe4#
      • 1...Rxa8+!
  • Keys
    • 1.Scxd5!
      • threat
        • 2.Sc3#
      • 1...Ke2
        • 2.Sf4#
      • 1...Kd4
        • 2.Sf6#
      • 1...Ke4
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINR(f),P-FLIGHT::R(A),XB(a)
  • Tries
    • Try
      • K(I);N_SPINQ(J),S_FLIGHT
      • Threat
        • QAR2(J),XP(e)
      • Vars
        • P(e);SBLOCK::QAB(J)
      • Refutation
        • R(h);CHECK
    • Try
      • S(G);XP(e)
      • Threat
        • QAR(J)+S(G)
      • Vars
        • K(c);N_SPINB(a),S_FLIGHT::S(G)
        • K(c);N_SPINB(a),N_SPINR(f),S_FLIGHT::S(G)
      • Refutation
        • K(c);N_SPINR(f),P-FLIGHT
    • Try
      • B(L);CHECK,N_SPINQ(J),XR(f)
      • Refutation
        • R(h);P_PINQ(J),XB(L)
    • Try
      • P(K);
      • Threat
        • QAR2(K),XP(e)
      • Vars
        • P(e);OGATE::QAB1(K)
      • Refutation
        • R(h);CHECK,XQ(K)
  • Actual
    • S(F);XP(e)
    • Threat
      • QAR(J)+S(F)
    • Vars
      • K(c);N_SPINB(a),N_SPINR(f),S_FLIGHT::S(F)
      • K(c);N_SPINR(f),P-FLIGHT::QAR(J)+S(F)
      • K(c);N_SPINB(a),S_FLIGHT::S(F)
HTML5 logo

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).