MESON Chess Problem Database

Problem Display
PID: 218498 (4r3/3p1p2/4n2N/n1R1K2k/4b2B/4q2R/1r6/b7 w - - 0 1)

Meyer, Heinrich Friedrich Ludwig

English Mechanic and World of Science, 1882

(First published on Fri Dec 22 1882)

4r3/3p1p2/4n2N/n1R1K2k/4b2B/4q2R/1r6/b7

#2

5 + 10

6490 yacpdb 2020
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Kf6+!
      • 1...Kxh6
        • 2.Bg3#
        • 2.Bg5#
      • 1...Qxc5
        • 2.Be1#
        • 2.Bf2#
        • 2.Bg3#
        • 2.Bg5#
      • 1...Qg5+
        • 2.Bxg5#
      • 1...Bd5
        • 2.Bg3#
      • 1...Bf5
        • 2.Bg3#
      • 1...Sxc5
        • 2.Bg3#
      • 1...Sg5
        • 2.Bg3#
      • 1...d5
        • 2.Bg3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Actual
    • K(D);CHECK,S_FLIGHT
    • Vars
      • Q(c);CHECK,N_GUARD,P_SPINQ(c)::R(A)+B(B),XQ(c)
      • B(d);P_SPINB(d)::R(A)+B(B)
      • S(g);XR(C)::R(A)+B(B)
      • S(g);P_SPINS(g)::R(A)+B(B)
      • P(h);P_SPINP(h)::R(A)+B(B)
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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).