MESON Chess Problem Database

Problem Display
PID: 166057 (6b1/2B3K1/2p1NQ2/N2kn1p1/1P6/3nPP2/8/b1r1r1q1 w - - 0 1)

Murashev, Pavel Aleksandrovich

Shanshin, Valery Yurevich

Troll, 2017

6b1/2B3K1/2p1NQ2/N2kn1p1/1P6/3nPP2/8/b1r1r1q1

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.e4#
    • 1...Rf1
      • 2.e4#
    • 1...Sb2
      • 2.Qxe5#
  • Tries
    • 1.Sf4+?
      • 1...Sxf4
        • 2.Qd6#
      • 1...gxf4+!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Qd6#
      • 1...Sxf3
        • 2.Qxf3#
      • 1...Be6
        • 2.Qxe6#
      • 1...Sc4
        • 2.Qxc6#
      • 1...Sf7
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(c);N_GUARD::P(A)
    • S(e);N_GUARD,S_CUTB(a)::QAR1(F),XS(g)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • S(e);XS(E)::QAR1(F)
      • Refutation
        • P(h);CHECK,XS(E)
  • Actual
    • S(E);
    • Threat
      • QAR1(F)
    • Vars
      • S(g);OGATE,XP(B)::QAB(F),XS(g)
      • B(j);N_GUARD::QAB1(F),XB(j)
      • S(g);N_GUARD,S_CUTR(b)::QAB1(F),XP(i)
      • S(g);S_CUTB(j)::QAB1(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).