MESON Chess Problem Database

Problem Display
PID: 208883 (6Q1/4N3/4pp2/2p5/2b1kp2/1p3N1P/1P1K4/7B w - - 0 1)

Shinkman, William Anthony

Detroit Free Press, 1876

6Q1/4N3/4pp2/2p5/2b1kp2/1p3N1P/1P1K4/7B

#2

7 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Qxe6#
      • 2.Qa8#
    • 1...Be2
      • 2.Qxe6#
      • 2.Qa8#
    • 1...Bd3
      • 2.Qxe6#
      • 2.Qa8#
    • 1...Bb5
      • 2.Qxe6#
    • 1...Ba6
      • 2.Qxe6#
    • 1...e5
      • 2.Qxc4#
  • Tries
    • 1.Sg5+?
      • 1...Kd4
        • 2.Sc6#
      • 1...Ke5!
  • Keys
    • 1.Sf5!
      • 1...Kd5
        • 2.Qa8#
      • 1...Kxf5
        • 2.Qh7#
      • 1...exf5
        • 2.Qxc4#
      • 1...Bf1
        • 2.Qxe6#
      • 1...Be2
        • 2.Qxe6#
      • 1...Bd3
        • 2.Qxe6#
      • 1...Bb5
        • 2.Qxe6#
      • 1...Bd5
        • 2.Sd6#
      • 1...Ba6
        • 2.Qxe6#
      • 1...e5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD::QAR2(G),XP(f)
    • P(f);OGATE::QAR2(G),XB(b)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(c);P-FLIGHT::S(F)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(F);
    • Vars
      • K(c);P_SPINP(f),S_FLIGHT::QAB(G)
      • K(c);OGATEB,S_FLIGHT,XS(F)::QAB(G)
      • P(f);OGATE,SBLOCK,XS(F)::QAR2(G),XB(b)
      • B(b);N_GUARD::QAR2(G),XP(f)
      • B(b);SBLOCK::S(F)
      • P(f);::S(F)
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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).