MESON Chess Problem Database

Problem Display
PID: 221419 (1Q6/2rN2P1/7B/5pn1/6k1/5b2/5R1K/3N4 w - - 0 1)

Lind, Jens Ingemar

SuperProblem 158. TT, 2015

1Q6/2rN2P1/7B/5pn1/6k1/5b2/5R1K/3N4

#2

7 + 5

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sf6+?
      • 1...Kf4
        • 2.Qxc7#
      • 1...Kh4!
  • Keys
    • 1.g8Q!
      • threat
        • 2.Qxg5#
      • 1...Kf4
        • 2.Qc4#
      • 1...Kh4
        • 2.Qxg5#
      • 1...Kh5
        • 2.Qxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);P-FLIGHT,P_SPINB(a),P_SPINR(e),P_SPINS(d)::QAB(G),XR(e)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • P(F);P_PINS(d)
    • Threat
      • QAR1(F),XS(d)
    • Vars
      • K(b);P-FLIGHT,P_SPINB(a),P_SPINR(e)::QAR(F)
      • K(b);N_SPINS(d),P-FLIGHT::QAB1(F),XS(d)
      • K(b);N_SPINS(d),S_FLIGHT::QAR1(F),XS(d)
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).