MESON Chess Problem Database

Problem Display
PID: 59215 (q4Qn1/n1p2B1R/5k1N/1p2p1pp/6p1/5N2/5B2/K4R2 w - - 0 1)

Pape, Edouard

2nd HM., Brisbane Courier, 1921-1922

q4Qn1/n1p2B1R/5k1N/1p2p1pp/6p1/5N2/5B2/K4R2

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Se7
      • 2.Qg7#
    • 1...e4
      • 2.Bd4#
    • 1...c5
      • 2.Qd6#
    • 1...c6
      • 2.Qd6#
  • Tries
    • 1.Ba2+?
      • 1...Kg6
        • 2.Qg7#
        • 2.Qf5#
        • 2.Qf7#
      • 1...Qxf8!
    • 1.Bb3+?
      • 1...Kg6
        • 2.Qg7#
        • 2.Qf5#
        • 2.Qf7#
      • 1...Qxf8!
    • 1.Bc4+?
      • 1...Kg6
        • 2.Qg7#
        • 2.Qf5#
        • 2.Qf7#
      • 1...Qxf8!
    • 1.Bd5+?
      • 1...Kg6
        • 2.Qg7#
        • 2.Qf5#
        • 2.Qf7#
      • 1...Qxf8!
    • 1.Bxg8+?
      • 1...Kg6
        • 2.Sxe5#
        • 2.Qg7#
        • 2.Qf5#
        • 2.Qf7#
      • 1...Qxf8!
  • Keys
    • 1.Sh4!
      • threat
        • 2.Sxg8#
      • 1...Sc6+
        • 2.Ba7#
      • 1...Sc8+
        • 2.Ba2#
      • 1...Qxf8
        • 2.Bc5#
      • 1...Sxh6
        • 2.Rxh6#
      • 1...gxh4
        • 2.Bxh4#
      • 1...e4
        • 2.Bg3#
        • 2.Bd4#
      • 1...Se7
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • S(j);SBLOCK::QAB1(H)
    • P(c);OGATEB::B(C)
    • P(h);N_GUARD::QAR2(H)
  • Tries
    • Try
      • B(F);CHECK
      • Refutation
        • Q(i);XQ(H)
    • Try
      • B(F);CHECK
      • Refutation
        • Q(i);XQ(H)
    • Try
      • B(F);CHECK
      • Refutation
        • Q(i);XQ(H)
    • Try
      • B(F);CHECK
      • Refutation
        • Q(i);XQ(H)
    • Try
      • B(F);CHECK,XS(j)
      • Refutation
        • Q(i);XQ(H)
  • Actual
    • S(D);
    • Threat
      • S(E),XS(j)
    • Vars
      • S(g);CHECK,S_CUTQ(i)::R(B)+B(C)
      • S(g);CHECK,S_CUTQ(i)::QAR(H)+B(F)
      • Q(i);N_GUARD,XQ(H)::R(B)+B(C)
      • S(j);OGATE,XS(E)::R(G),XS(j)
      • P(d);OGATE,XS(D)::R(B)+B(C),DCHECK,XP(d)
      • S(j);SBLOCK::QAB1(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).