MESON Chess Problem Database

Problem Display
PID: 166911 (3N4/b2N4/3p2r1/1Rqk3b/1R6/7n/pKB3r1/Bn5Q w - - 0 1)

Touw Hian Bwee

Die Schwalbe, 1965

3N4/b2N4/3p2r1/1Rqk3b/1R6/7n/pKB3r1/Bn5Q

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Be4#
    • 1...Sf2
      • 2.Bb3#
  • Tries
    • 1.Qxg2+?
      • 1...Bf3
        • 2.Bb3#
        • 2.Qxf3#
      • 1...Rxg2!
  • Keys
    • 1.Kc1!
      • threat
        • 2.Rd4#
      • 1...Qxb5
        • 2.Be4#
      • 1...Rg4
        • 2.Sf6#
      • 1...Sc3
        • 2.Bb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(g);N_PINB(D)::B(D)
    • S(d);N_PINB(D)::B(D)
  • Tries
    • Try
      • Q(B);CHECK,N_SPINB(D),XR(c)
      • Refutation
        • R(i);P_PINB(D),XQ(B)
  • Actual
    • K(C);S_FLIGHT
    • Threat
      • R1(E)
    • Vars
      • Q(e);N_PINB(D),N_SPINQ(e),XR(F)::B(D)
      • R(i);N_GUARD::S(G)
      • S(a);N_PINB(D)::B(D)
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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).