MESON Chess Problem Database

Problem Display
PID: 124556 (8/1b2b1n1/1Np2p2/2P2p1p/3PkN2/2Pp1Rp1/Q2P2P1/2K2n2 w - - 0 1)

Petite, Efren

Vatarescu, Paul

Source?, 0000

8/1b2b1n1/1Np2p2/2P2p1p/3PkN2/2Pp1Rp1/Q2P2P1/2K2n2

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Se6
      • 2.Qxe6#
    • 1...Se8
      • 2.Qe6#
  • Tries
    • 1.Se2?
      • threat
        • 2.Rf4#
      • 1...Sxd2
        • 2.Sxg3#
      • 1...dxe2
        • 2.Qb1#
        • 2.Qc2#
        • 2.d3#
      • 1...f4
        • 2.Rxf4#
      • 1...Se6
        • 2.Qxe6#
      • 1...Bd6!
    • 1.Qc2?
      • threat
        • 2.Qxd3#
      • 1...dxc2
        • 2.d3#
      • 1...Ba6!
  • Keys
    • 1.Sxh5!
      • threat
        • 2.Rf4#
      • 1...Sxd2
        • 2.Sxg3#
      • 1...Sxh5
        • 2.Qe6#
      • 1...f4
        • 2.Rxf4#
      • 1...Bd6
        • 2.Sxf6#
      • 1...Se6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(k);N_GUARD::QAR2(B),XS(k)
    • S(k);N_GUARD::QAR2(B)
  • Tries
    • Try
      • S(H);
      • Threat
        • R1(F)
      • Vars
        • S(a);N_GUARD,XP(C)::S(H),XP(c)
        • P(e);::R1(F),XP(e)
        • S(k);N_GUARD::QAR2(B),XS(k)
      • Refutation
        • B(j);
    • Try
      • Q(B);P_PINP(b)
      • Threat
        • QAB1(B),XP(b)
      • Vars
        • P(b);N_SPINP(b),OGATE,XQ(B)::P(C)
      • Refutation
        • B(i);
  • Actual
    • S(H);XP(f)
    • Threat
      • R1(F)
    • Vars
      • S(a);N_GUARD,XP(C)::S(H),XP(c)
      • S(k);N_GUARD,XS(H)::QAR2(B)
      • P(e);::R1(F),XP(e)
      • B(j);N_GUARD::S(H),XP(h)
      • S(k);N_GUARD::QAR2(B),XS(k)
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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).