MESON Chess Problem Database

Problem Display
PID: 233373 (8/8/p1PpNP2/K2k4/8/2Pr1N1B/1P5B/3R1Q2 w - - 0 1)

Salway, Herbert A

The Field, 1900

(First published on Fri Jun 15 1900)

8/8/p1PpNP2/K2k4/8/2Pr1N1B/1P5B/3R1Q2

#2

11 + 4

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qxd3#
  • Tries
    • 1.Se5?
      • threat
        • 2.Qg2#
        • 2.Qxd3#
        • 2.Qh1#
        • 2.Qf3#
      • 1...Ke4
        • 2.Qxd3#
      • 1...Rxd1
        • 2.Qg2#
        • 2.Qc4#
        • 2.Qf3#
      • 1...Rd2
        • 2.Qg2#
        • 2.Qc4#
        • 2.Qh1#
        • 2.Qf3#
      • 1...Rd4
        • 2.Rxd4#
        • 2.Qg2#
        • 2.Qh1#
        • 2.Qf3#
      • 1...dxe5!
    • 1.Rxd3+?
      • 1...Kc4
        • 2.Sd2#
      • 1...Ke4
        • 2.Sd2#
        • 2.Sfg5#
        • 2.Seg5#
        • 2.Qe2#
      • 1...Kxc6!
    • 1.c4+?
      • 1...Kxc4
        • 2.Qxd3#
      • 1...Ke4
        • 2.Qxd3#
      • 1...Kxc6!
  • Keys
    • 1.Bg2!
      • 1...Kc4
        • 2.Sd2#
      • 1...Ke4
        • 2.Qxd3#
      • 1...Kxc6
        • 2.Se5#
      • 1...Kxe6
        • 2.Sg5#
      • 1...Rxd1
        • 2.Sfd4#
        • 2.Sfg5#
      • 1...Rd2
        • 2.Sfg5#
      • 1...Rd4
        • 2.Sfxd4#
        • 2.Sfg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINR(a),S_FLIGHT::QAB1(B),XR(a)
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(4)
      • Vars
        • K(b);N_SPINR(a),S_FLIGHT::QAB1(B),XR(a)
      • Refutation
        • P(d);XS(F)
    • Try
      • R(A);CHECK,XR(a)
      • Vars
        • K(b);S_FLIGHT::S(F)
      • Refutation
        • K(b);S_FLIGHT,XP(I)
    • Try
      • P(E);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(E)::QAB1(B),XR(a)
        • K(b);N_SPINR(a),S_FLIGHT::QAB1(B),XR(a)
      • Refutation
        • K(b);N_SPINR(a),S_FLIGHT,XP(I)
  • Actual
    • B(G);
    • Vars
      • K(b);S_FLIGHT::S(F)
      • K(b);N_SPINR(a),S_FLIGHT::QAB1(B),XR(a)
      • K(b);N_SPINR(a),S_FLIGHT,XP(I)::B(G)+S(F),DCHECK
      • K(b);N_SPINR(a),S_FLIGHT,XS(J)::S(F)
      • R(a);::B(G)+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).