MESON Chess Problem Database

Problem Display
PID: 100921 (8/p3p2p/Q3P2P/3P2Pp/1p1Nkb1R/1P3N2/3p4/3K4 w - - 0 1)

Erskine, John Angus

Good Companions, 1922

8/p3p2p/Q3P2P/3P2Pp/1p1Nkb1R/1P3N2/3p4/3K4

#2

10 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qe2#
    • 1...Kxd5
      • 2.Qc6#
  • Tries
    • 1.d6?
      • 1...Ke3
        • 2.Qe2#
      • 1...Kd5
        • 2.Qc6#
      • 1...exd6!
    • 1.g6?
      • 1...Ke3
        • 2.Qe2#
      • 1...Kxd5
        • 2.Qc6#
      • 1...hxg6!
  • Keys
    • 1.Sf5!
      • 1...Kxf3
        • 2.Qe2#
      • 1...Kxd5
        • 2.Qc4#
      • 1...Kxf5
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(c);N_SPINB(d),P-FLIGHT::QAR1(H)
    • K(c);N_SPINB(d),OGATEB,S_FLIGHT,XP(F)::QAB1(H)
  • Tries
    • Try
      • P(F);
      • Vars
        • K(c);N_SPINB(d),P-FLIGHT::QAR1(H)
        • K(c);N_SPINB(d),S_FLIGHT::QAB1(H)
      • Refutation
        • P(g);XP(F)
    • Try
      • P(G);
      • Vars
        • K(c);N_SPINB(d),P-FLIGHT::QAR1(H)
        • K(c);N_SPINB(d),OGATEB,S_FLIGHT,XP(F)::QAB1(H)
      • Refutation
        • P(h);XP(G)
  • Actual
    • S(D);
    • Vars
      • K(c);N_SPINB(d),S_FLIGHT,XS(C)::QAB1(H)
      • K(c);N_SPINB(d),S_FLIGHT,XP(F)::QAB1(H)
      • K(c);N_SPINB(d),S_FLIGHT,XS(D)::QAB(H)
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).