MESON Chess Problem Database

Problem Display
PID: 208729 (3N4/3p4/2PpP3/1r1p1r2/n1P1p1n1/K1R1p1b1/p1P1P1B1/k1N1B1Q1 w - - 0 1)

Barrier, ?

Detroit Free Press, 1875

3N4/3p4/2PpP3/1r1p1r2/n1P1p1n1/K1R1p1b1/p1P1P1B1/k1N1B1Q1

#2

12 + 12

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sb3+?
      • 1...Kb1
        • 2.Bf2#
      • 1...Rxb3+!
  • Keys
    • 1.Bf2!
      • threat
        • 2.Sb3#
      • 1...Rb3+
        • 2.Sxb3#
      • 1...Kb1
        • 2.Sxa2#
        • 2.Sb3#
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR(C)+B(B)
      • Refutation
        • R(h);CHECK,XS(A)
  • Actual
    • B(B);
    • Threat
      • QAR(C)+S(A),DCHECK
    • Vars
      • R(h);CHECK::QAR(C)+S(A),DCHECK,XR(h)
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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).