MESON Chess Problem Database

Problem Display
PID: 218497 (1B6/2N2p1B/4Q3/1R1K4/n1pb1k1P/3q3R/6rN/1r1n3b w - - 0 1)

Meyer, Heinrich Friedrich Ludwig

English Mechanic and World of Science, 1882

(First published on Fri Dec 22 1882)

1B6/2N2p1B/4Q3/1R1K4/n1pb1k1P/3q3R/6rN/1r1n3b

#2

9 + 10

6490 yacpdb 2020
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Qf5#
      • 2.Qe4#
    • 1...Qc2
      • 2.Rf3#
    • 1...Qe2
      • 2.Qf5#
    • 1...Qe4+
      • 2.Qxe4#
    • 1...Qf5+
      • 2.Qxf5#
    • 1...Qg6
      • 2.Rf3#
    • 1...Qxh7
      • 2.Rf3#
    • 1...Qd2
      • 2.Rf3#
      • 2.Qf5#
      • 2.Qe4#
    • 1...Qa3
      • 2.Qf5#
      • 2.Qe4#
    • 1...Qb3
      • 2.Qf5#
      • 2.Qe4#
    • 1...Qc3
      • 2.Qf5#
      • 2.Qe4#
    • 1...Qe3
      • 2.Qf5#
    • 1...Qf3+
      • 2.Rxf3#
    • 1...Qg3
      • 2.Qe4#
    • 1...fxe6+
      • 2.Sxe6#
  • Tries
    • 1.Qxf7+?
      • 1...Qf5+
        • 2.Qxf5#
      • 1...Bf6+!
    • 1.Qf6+?
      • 1...Qf5+
        • 2.Qxf5#
      • 1...Bxf6+!
  • Keys
    • 1.Kc6!
      • threat
        • 2.Sd5#
      • 1...Be5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • Q(e);N_GUARD::R1(B)
    • Q(e);N_GUARD::QAR1(F)
    • Q(e);CHECK,N_GUARD::QAR1(F),XQ(e)
    • Q(e);N_GUARD,XB(H)::R1(B)
    • Q(e);CHECK,N_GUARD::R1(B),XQ(e)
    • P(j);CHECK,XQ(F)::B(I)+S(G),DCHECK,XP(j)
  • Tries
    • Try
      • Q(F);CHECK,XP(j)
      • Vars
        • Q(e);CHECK,N_GUARD,P_SPINQ(e)::QAR1(F),XQ(e)
      • Refutation
        • B(h);CHECK,P_SPINB(h)
    • Try
      • Q(F);CHECK
      • Vars
        • Q(e);CHECK,N_GUARD,P_SPINQ(e)::QAR1(F),XQ(e)
      • Refutation
        • B(h);CHECK,XQ(F)
  • Actual
    • K(E);S_FLIGHT
    • Threat
      • B(I)+S(G),DCHECK
    • Vars
      • B(h);N_GUARD::QAB1(F),XB(h)
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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).