MESON Chess Problem Database

Problem Display
PID: 9307 (8/8/k1K3Q1/8/8/8/8/8 w - - 0 1)

Shinkman, William Anthony

New York Clipper, 1871

8/8/k1K3Q1/8/8/8/8/8

#2

2 + 1

15166 DSB 1980
5454 Near Snap 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Qd3+?
      • 1...Ka5
        • 2.Qb5#
        • 2.Qa3#
      • 1...Ka7!
    • 1.Qg3?
      • threat
        • 2.Qa3#
      • 1...Ka5
        • 2.Qa3#
      • 1...Ka7!
    • 1.Qd6?
      • threat
        • 2.Qa3#
      • 1...Ka5
        • 2.Qa3#
      • 1...Ka7!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qa2#
        • 2.Qa1#
        • 2.Qb6#
      • 1...Ka5
        • 2.Qb5#
      • 1...Ka7
        • 2.Qb7#

This anticipates 232358(1975), 15166(1980)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR(B)
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR(B)
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(B);
    • Threat
      • DUALS(3)
    • Vars
      • K(a);P-FLIGHT::QAR1(B)
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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).