MESON Chess Problem Database

Problem Display
PID: 159158 (8/6R1/1N1p3B/3P1P2/1R1pk3/2P5/5p2/Q2K1N2 w - - 0 1)

Akhaladze, Beka

ChessStar, 2015

8/6R1/1N1p3B/3P1P2/1R1pk3/2P5/5p2/Q2K1N2

#2

10 + 4

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Rxd4#
    • 1...Kf3
      • 2.Sd2#
  • Tries
    • 1.Qb1+?
      • 1...Kf3
        • 2.Sd2#
        • 2.Sh2#
        • 2.Rg3#
        • 2.Qd3#
      • 1...Ke5!
    • 1.Qc1?
      • 1...Kd3
        • 2.Rxd4#
        • 2.Qc2#
      • 1...Kf3
        • 2.Sd2#
        • 2.Qf4#
      • 1...Kxf5
        • 2.Qf4#
      • 1...Ke5!
  • Keys
    • 1.Sd7!
      • 1...Kd3
        • 2.Rxd4#
      • 1...Kf3
        • 2.Sd2#
      • 1...Kxd5
        • 2.Qa8#
      • 1...Kxf5
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(b),S_FLIGHT::R1(E),XP(b)
    • K(c);N_SPINP(b),S_FLIGHT::S(C)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • K(c);N_SPINP(b),P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT,XP(G)::QAR1(A)
      • Refutation
        • K(c);N_SPINP(b),P-FLIGHT
  • Actual
    • S(H);
    • Vars
      • K(c);N_SPINP(b),S_FLIGHT::R1(E),XP(b)
      • K(c);N_SPINP(b),S_FLIGHT::S(C)
      • K(c);N_SPINP(b),OGATEB,S_FLIGHT,XP(F)::QAB(A)
      • K(c);N_SPINP(b),S_FLIGHT,XP(G)::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).