MESON Chess Problem Database

Problem Display
PID: 153987 (2r1r3/2BR4/B3pnn1/3b1Rp1/1p1Nk1pp/5N2/1K1P1p2/6bQ w - - 0 1)

Shanshin, Valery Yurevich

The Problemist Supplement, 2014

2r1r3/2BR4/B3pnn1/3b1Rp1/1p1Nk1pp/5N2/1K1P1p2/6bQ

#2

9 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.Qb1#
    • 1...Ba2
      • 2.Se1#
      • 2.Sxg1#
      • 2.Sh2#
      • 2.Sxh4#
      • 2.Se5#
      • 2.Sxg5#
    • 1...Bb3
      • 2.Se1#
      • 2.Sxg1#
      • 2.Sh2#
      • 2.Sxh4#
      • 2.Se5#
      • 2.Sxg5#
    • 1...Bc4
      • 2.Se1#
      • 2.Se5#
    • 1...Bc6
      • 2.Se1#
      • 2.Sxg1#
      • 2.Sh2#
      • 2.Sxh4#
      • 2.Se5#
      • 2.Sxg5#
    • 1...Bb7
      • 2.Se1#
      • 2.Sxg1#
      • 2.Sh2#
      • 2.Sxh4#
      • 2.Se5#
      • 2.Sxg5#
    • 1...Ba8
      • 2.Se1#
      • 2.Sxg1#
      • 2.Sh2#
      • 2.Sxh4#
      • 2.Se5#
      • 2.Sxg5#
    • 1...Sf4
      • 2.Re5#
  • Tries
    • 1.Re5+?
      • 1...Kf4
        • 2.Se2#
      • 1...Sxe5!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sd6#
      • 1...Kd3
        • 2.Sc3#
      • 1...Kxf5
        • 2.Sfd4#
      • 1...gxf3
        • 2.Qxf3#
      • 1...exf5
        • 2.Se1#
      • 1...Bh2
        • 2.Qb1#
      • 1...Bc4
        • 2.Sxh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • B(a);OGATE::QAB(A)
    • S(k);N_GUARD,SBLOCK::R1(F)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(d);P-FLIGHT::S(E)
      • Refutation
        • S(k);XR(F)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(d);P_SPINB(g),S_FLIGHT::B(G)+S(E)
      • K(d);S_FLIGHT,XR(F)::S(D)
      • P(e);OGATE,P_SPINP(e),XS(D)::QAB1(A),XP(e)
      • P(i);SBLOCK,XR(F)::QAB(A)+S(D)
      • B(a);OGATE::QAB(A)
      • B(g);::QAB(A)+S(D),XP(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).