MESON Chess Problem Database

Problem Display
PID: 30851 (4B3/b7/1p2pK2/6p1/2b1kp2/1N5R/3Pp3/3r4 w - - 0 1)

Meyer, Heinrich Friedrich Ludwig

English Mechanic and World of Science, 1874

(First published on Fri Apr 17 1874)

4B3/b7/1p2pK2/6p1/2b1kp2/1N5R/3Pp3/3r4

#2

5 + 9

15239 Valois Notebooks 2020
3713 Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Bc6#
    • 1...Bd5
      • 2.Bg6#
    • 1...Ba6
      • 2.Bc6#
  • Keys
    • 1.Rd3!
      • threat
        • 2.Bg6#
      • 1...Kxd3
        • 2.Bg6#
      • 1...Bxd3
        • 2.Bc6#
      • 1...f3
        • 2.Rd4#

This anticipates 208116(1874)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(c);N_GUARD::B(E)
    • B(c);SBLOCK::B(E)
  • Actual
    • R(C);
    • Threat
      • B(E)
    • Vars
      • K(d);S_FLIGHT,XR(C)::B(E)
      • B(c);N_GUARD,SBLOCK,XR(C)::B(E)
      • P(e);SBLOCK::R1(C)
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