MESON Chess Problem Database

Problem Display
PID: 267274 (2N2n2/2n1r3/Q1P4r/K2k1B2/pPR2P2/Np6/3b4/q7 w - - 0 1)

Bains, JA

Sunday Referee, 1938

(First published on Sun Aug 7 1938)

2N2n2/2n1r3/Q1P4r/K2k1B2/pPR2P2/Np6/3b4/q7

#2

9 + 9

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc6
      • 2.Qxc6#
    • 1...Rd6
      • 2.Sb6#
      • 2.Sxe7#
    • 1...Sb5
      • 2.Qxb5#
    • 1...Sce6
      • 2.Be4#
    • 1...Sa8
      • 2.Qb5#
    • 1...Se8
      • 2.Qb5#
    • 1...Sfe6
      • 2.Be4#
  • Tries
    • 1.Rd4+?
      • 1...Kxd4
        • 2.Qd3#
      • 1...Qxd4!
  • Keys
    • 1.Rc5+!
      • 1...Kd4
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(f);OGATE,XP(H)::QAB1(G),XR(f)
    • S(g);N_GUARD::QAR2(G),XS(g)
    • S(g);SBLOCK,S_CUTR(h)::B(F)
    • S(g);N_GUARD::QAR2(G)
    • S(i);SBLOCK,S_CUTR(h)::B(F)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(e);N_GUARD,P-FLIGHT,S_CUTQ(a),XR(C)::QAR1(G)
      • Refutation
        • Q(a);XR(C)
  • Actual
    • R(C);CHECK
    • Vars
      • K(e);P-FLIGHT::QAR1(G)
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).