MESON Chess Problem Database

Problem Display
PID: 207560 (7Q/7p/2K1P2p/2N4B/3R2n1/2b1k1r1/1n2p1pp/4B3 w - - 0 1)

Shinkman, William Anthony

New York Clipper, 1872

7Q/7p/2K1P2p/2N4B/3R2n1/2b1k1r1/1n2p1pp/4B3

#2

7 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Re4#
    • 1...Se5+
      • 2.Qxe5#
  • Tries
    • 1.Qe5+?
      • 1...Kf3
        • 2.Rf4#
        • 2.Qxg3#
        • 2.Qf4#
        • 2.Qe4#
      • 1...Sxe5+!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Qf4#
      • 1...Se5+
        • 2.Qxe5#
      • 1...Kf3
        • 2.Qxg3#
        • 2.Qf4#
      • 1...Kxd4
        • 2.Qf4#
      • 1...Bxd4
        • 2.Qxg3#
      • 1...Rf3
        • 2.Re4#
      • 1...Sd3
        • 2.Rxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(g);SBLOCK::R1(B)
    • S(h);CHECK,N_GUARD::QAR2(G),XS(h)
  • Tries
    • Try
      • Q(G);CHECK
      • Refutation
        • S(h);CHECK,XQ(G)
  • Actual
    • Q(G);
    • Threat
      • QAB1(G)
    • Vars
      • S(h);CHECK,N_GUARD::QAR2(G),XS(h)
      • K(f);S_FLIGHT,XR(B)::QAR2(G)
      • B(e);SBLOCK,XR(B)::QAR2(G),XR(g)
      • R(g);SBLOCK::R1(B)
      • S(a);N_GUARD::R1(B),XS(a)
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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).