MESON Chess Problem Database

Problem Display
PID: 214805 (1B6/3K4/1pN5/2k2p2/p5R1/3P4/4P3/5B2 w - - 0 1)

Koerper, Rudolph

St. Louis Globe Democrat, 1877

1B6/3K4/1pN5/2k2p2/p5R1/3P4/4P3/5B2

#2

7 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Rg5#
  • Tries
    • 1.Bd6+?
      • 1...Kd5
        • 2.Sb4#
        • 2.Se7#
        • 2.Bg2#
        • 2.Rd4#
      • 1...Kb5!
    • 1.Rc4+?
      • 1...Kd5
        • 2.Sb4#
        • 2.Se7#
        • 2.Bg2#
      • 1...Kb5!
  • Keys
    • 1.e4!
      • threat
        • 2.d4#
      • 1...Kb5
        • 2.d4#
      • 1...fxe4
        • 2.Rg5#
      • 1...b5
        • 2.Ba7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(c);OGATEB::R(D)
  • Tries
    • Try
      • B(G);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(D);CHECK
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • P(B);
    • Threat
      • P(C)
    • Vars
      • K(b);P-FLIGHT::B(A)+P(C)
      • P(c);OGATEB,XP(B)::R(D)
      • P(d);OGATEB,SBLOCK::B(G)
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