MESON Chess Problem Database

Problem Display
PID: 118364 (8/8/4pn2/4PNN1/6p1/4PpPp/p4k1K/B2Q4 w - - 0 1)

Reitman, Mark

Apprenti Sorcier, 1992

8/8/4pn2/4PNN1/6p1/4PpPp/p4k1K/B2Q4

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Sxe4#
    • 1...Sd5
      • 2.Se4#
    • 1...Sh5
      • 2.Se4#
    • 1...Sd7
      • 2.Se4#
    • 1...Sh7
      • 2.Se4#
    • 1...Se8
      • 2.Se4#
    • 1...Sg8
      • 2.Se4#
  • Tries
    • 1.Qxf3+?
      • 1...Ke1
        • 2.Bc3#
      • 1...gxf3!
  • Keys
    • 1.Sh6!
      • 1...Kxe3
        • 2.Bd4#
      • 1...Se4
        • 2.Sxg4#
      • 1...Sd5
        • 2.Sxg4#
      • 1...Sh5
        • 2.Sxg4#
      • 1...Sd7
        • 2.Sxg4#
      • 1...Sh7
        • 2.Sxg4#
      • 1...Se8
        • 2.Sxg4#
      • 1...Sg8
        • 2.Sxg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 7
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(g);N_GUARD::S(H),XS(g)
    • S(g);N_GUARD::S(H)
  • Tries
    • Try
      • Q(B);CHECK,XP(c)
      • Vars
        • K(b);S_FLIGHT::B(A)
      • Refutation
        • P(e);XQ(B)
  • Actual
    • S(G);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XP(D)::B(A)
      • S(g);N_GUARD::S(G),XP(e)
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).