MESON Chess Problem Database

Problem Display
PID: 238971 (n1r1N3/1b3R2/p1kP4/K1PN3p/6n1/Bp5B/2rQ4/2R5 w - - 0 1)

Petite, Efren

Sakkelet, 1998

n1r1N3/1b3R2/p1kP4/K1PN3p/6n1/Bp5B/2rQ4/2R5

#2

10 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Sb4#
    • 1...Rb2
      • 2.Sb4#
    • 1...Rxd2
      • 2.Sb4#
    • 1...Rxc5+
      • 2.Rxc5#
    • 1...Sf2
      • 2.Se7#
      • 2.Bd7#
    • 1...Sh2
      • 2.Se7#
      • 2.Bd7#
    • 1...Se3
      • 2.Se7#
      • 2.Bd7#
    • 1...Se5
      • 2.Se7#
    • 1...Sf6
      • 2.Se7#
    • 1...Sh6
      • 2.Se7#
      • 2.Bd7#
  • Tries
    • 1.Qg5?
      • threat
        • 2.Sb4#
      • 1...Rxc5+
        • 2.Rxc5#
      • 1...Se5
        • 2.Se7#
      • 1...Rc4!
    • 1.Qd4?
      • threat
        • 2.Sb4#
      • 1...Rxc5+
        • 2.Rxc5#
        • 2.Qxc5#
      • 1...Rc4!
  • Keys
    • 1.d7!
      • threat
        • 2.Se7#
      • 1...Rxc5+
        • 2.Rxc5#
      • 1...Rxd2
        • 2.Sb4#
      • 1...Rxe8
        • 2.dxe8Q#
        • 2.dxe8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • R(a);P_PINB(C)::S(G)
    • R(a);::S(G)
    • R(a);XQ(B)::S(G)
    • R(a);CHECK,OGATE,P_SPINR(a),XP(F)::R1(A),XR(a)
    • S(c);::S(G)
  • Tries
    • Try
      • Q(B);
      • Threat
        • S(G)
      • Vars
        • R(a);CHECK,OGATE,P_SPINR(a),XP(F)::R1(A),XR(a)
        • S(c);::S(G)
      • Refutation
        • R(a);
    • Try
      • Q(B);
      • Threat
        • S(G)
      • Refutation
        • R(a);
  • Actual
    • P(H);
    • Threat
      • S(G)
    • Vars
      • R(a);CHECK,OGATE,P_SPINR(a),XP(F)::R1(A),XR(a)
      • R(a);XQ(B)::S(G)
      • R(i);OGATE,XS(J)::PXR(i)=Q
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).