MESON Chess Problem Database

Problem Display
PID: 203602 (Q5bb/2p1r3/2R3pn/2p1k3/5p1N/2K1pB2/8/8 w - - 0 1)

Voronov, VN

64 Shakhmatnoe obozrenie, 1924

Q5bb/2p1r3/2R3pn/2p1k3/5p1N/2K1pB2/8/8

#2

5 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bf7
      • 2.Qxh8#
    • 1...Sf5
      • 2.Sxg6#
  • Keys
    • 1.Qf8!
      • threat
        • 2.Sxg6#
      • 1...Re6
        • 2.Rxc5#
      • 1...Rf7
        • 2.Qxc5#
      • 1...Rg7
        • 2.Qf6#
      • 1...Bf7
        • 2.Qxh8#
      • 1...Bh7
        • 2.Qxe7#
      • 1...Bf6
        • 2.Qxf6#
      • 1...Sf7
        • 2.Qxe7#
      • 1...g5
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • B(i);OGATE::QAB(E),XB(j)
    • S(f);SBLOCK::S(C),XP(e)
  • Actual
    • Q(E);
    • Threat
      • S(C),XP(e)
    • Vars
      • R(h);SBLOCK,S_CUTB(i)::R(D),XP(c)
      • R(h);OGATE::QAR2(E),XP(c)
      • R(h);S_CUTB(j)::QAB1(E)
      • B(i);OGATE::QAB(E),XB(j)
      • B(i);N_GUARD::QAR2(E),XR(h)
      • B(j);N_GUARD::QAB1(E),XB(j)
      • S(f);S_CUTB(i)::QAR2(E),XR(h)
      • P(e);::S(C)
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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).