MESON Chess Problem Database

Problem Display
PID: 163859 (1N2rrq1/B1RPp1p1/R5N1/1p1kPp1Q/8/5P1b/K2PP1P1/5B2 w - - 0 1)

Sukhodolov, Nikolai

Zadachi i Etyudi, 2014

1N2rrq1/B1RPp1p1/R5N1/1p1kPp1Q/8/5P1b/K2PP1P1/5B2

#2

14 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...e6
      • 2.Rd6#
  • Tries
    • 1.Qxf5?
      • threat
        • 2.Sf4#
        • 2.Qd3#
        • 2.Qe4#
        • 2.e4#
      • 1...Rxf5
        • 2.e4#
      • 1...Bxf5!
    • 1.dxe8Q?
      • threat
        • 2.Qxb5#
        • 2.Qc6#
        • 2.Qd7#
      • 1...Qe6
        • 2.Qxb5#
      • 1...Rf6
        • 2.Qxb5#
      • 1...b4
        • 2.Qb5#
        • 2.Qc6#
        • 2.Qd7#
      • 1...f4
        • 2.Sxe7#
        • 2.Qxb5#
        • 2.Qc6#
      • 1...Rxe8!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Sb4#
      • 1...Kc4
        • 2.e4#
      • 1...Ke6
        • 2.Sf4#
      • 1...b4
        • 2.Sxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(e);N_GUARD::R1(I)
  • Tries
    • Try
      • Q(H);XP(d)
      • Threat
        • DUALS(4)
      • Vars
        • R(h);XQ(H)::P(D)
      • Refutation
        • B(a);XQ(H)
    • Try
      • P(M);XR(g)
      • Threat
        • DUALS(3)
      • Vars
        • Q(i);::QAR2(M),XP(b)
        • R(h);::QAR2(M),XP(b)
      • Refutation
        • R(h);XQ(M)
  • Actual
    • S(N);
    • Threat
      • S(N)
    • Vars
      • K(c);S_FLIGHT::B(A)+P(D)
      • K(c);S_FLIGHT::S(J)
      • P(b);::S(N),XP(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).