MESON Chess Problem Database

Problem Display
PID: 222897 (4N3/n3pP1B/1R6/4p2Q/nPk1rN2/8/P3P2K/B6b w - - 0 1)

Eliasson, J

Tidskrift for Schack, 1910

4N3/n3pP1B/1R6/4p2Q/nPk1rN2/8/P3P2K/B6b

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe2+
      • 2.Qxe2#
    • 1...e6
      • 2.Sd6#
  • Keys
    • 1.Qxe5!
      • threat
        • 2.Qd5#
      • 1...Rxe2+
        • 2.Qxe2#
      • 1...Rxf4
        • 2.Bd3#
      • 1...Rxe5
        • 2.Bd3#
      • 1...Sxb6
        • 2.Qc5#
      • 1...Sb5
        • 2.Qxb5#
      • 1...Re3
        • 2.Qd4#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Sb2
        • 2.Qc5#
      • 1...Sc3
        • 2.Qxc3#
        • 2.Qc5#
      • 1...e6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(d);CHECK,OGATE,XP(C)::QAB(G),XR(d)
    • P(g);N_GUARD::S(K)
  • Actual
    • Q(G);XP(e)
    • Threat
      • QAB1(G)
    • Vars
      • R(d);CHECK,OGATE,XP(C)::QAB(G),XR(d)
      • R(d);OGATE,XS(F)::B(J)
      • R(d);OGATE,XQ(G)::B(J)
      • S(b);N_GUARD,XR(H)::QAR1(G)
      • S(f);N_GUARD::QAB1(G),XS(f)
      • R(d);N_GUARD::QAR1(G)
      • R(d);N_GUARD::QAR1(G),XR(d)
      • S(b);N_GUARD::QAR1(G)
      • P(g);N_GUARD::S(K)
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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).