MESON Chess Problem Database

Problem Display
PID: 156354 (3R4/3p3n/8/nQ2PN2/3pk1P1/2prP3/3p2KB/6N1 w - - 0 1)

Guida, Marco

The Problemist, 2014

3R4/3p3n/8/nQ2PN2/3pk1P1/2prP3/3p2KB/6N1

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe3
      • 2.Sd6#
    • 1...d5
      • 2.Qxd5#
  • Tries
    • 1.Rxd7?
      • threat
        • 2.Qd5#
      • 1...Rxe3
        • 2.Sd6#
        • 2.Rxd4#
      • 1...dxe3
        • 2.Qxd3#
      • 1...Sf6!
    • 1.Qxd7?
      • threat
        • 2.Qd5#
      • 1...Rxe3
        • 2.Qxd4#
      • 1...dxe3
        • 2.Qxd3#
      • 1...Sf6!
  • Keys
    • 1.Se2!
      • threat
        • 2.Seg3#
      • 1...Rxe3
        • 2.Sd6#
      • 1...dxe3
        • 2.Sfg3#
      • 1...d5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(c);SBLOCK,XP(D)::S(H)
    • P(g);::QAB1(F),XP(g)
  • Tries
    • Try
      • R(I);XP(g)
      • Threat
        • QAB1(F)
      • Vars
        • P(d);XP(D)::QAB1(F),XR(c)
      • Refutation
        • S(h);
    • Try
      • Q(F);XP(g)
      • Threat
        • QAB1(F)
      • Vars
        • R(c);N_GUARD,XP(D)::QAR1(F),XP(d)
        • P(d);OGATE,XP(D)::QAB1(F),XR(c)
      • Refutation
        • S(h);
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • R(c);SBLOCK,XP(D)::S(H)
      • P(d);SBLOCK,XP(D)::S(H)
      • P(g);::QAB1(F),XP(g)
HTML5 logo

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).