MESON Chess Problem Database

Problem Display
PID: 2575 (1n6/Rp1k2K1/pP1PN3/P1P5/3R1P2/8/8/3B4 w - - 0 1)

Narraway, James Ephraim

Source?, 0000

1n6/Rp1k2K1/pP1PN3/P1P5/3R1P2/8/8/3B4

#2

10 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Ba4#
    • 1...Kxe6
      • 2.Bg4#
  • Tries
    • 1.Rxb7+?
      • 1...Kxe6
        • 2.Bg4#
      • 1...Kc8
        • 2.Rc7#
      • 1...Ke8
        • 2.Bh5#
        • 2.Re7#
      • 1...Kc6!
  • Keys
    • 1.Ra8!
      • 1...Kc6
        • 2.Ba4#
      • 1...Kxe6
        • 2.Bg4#
      • 1...Kc8
        • 2.d7#
      • 1...Ke8
        • 2.Ba4#
      • 1...Sc6
        • 2.Sf8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(b),S_FLIGHT::B(A)
    • K(c);N_SPINP(b),OGATEB,S_FLIGHT,XS(H)::B(A)
  • Tries
    • Try
      • R(I);CHECK,XP(b)
      • Vars
        • K(c);S_FLIGHT,XS(H)::B(A)
        • K(c);S_FLIGHT::R1(I)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • R(I);N_PINP(b)
    • Vars
      • K(c);S_FLIGHT::B(A)
      • K(c);OGATEB,S_FLIGHT,XS(H)::B(A)
      • K(c);OGATE,P_SPINS(d),S_FLIGHT::P(G)
      • K(c);P_SPINS(d),S_FLIGHT::B(A)
      • S(d);SBLOCK::S(H)
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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).