MESON Chess Problem Database

Problem Display
PID: 216269 (3N1K2/8/4N3/R2pk3/8/3B4/3B4/8 w - - 0 1)

Kellner, Franz Josef

San Francisco Argonaut, 1882

3N1K2/8/4N3/R2pk3/8/3B4/3B4/8

#2

6 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Ke8?
      • 1...Kd6
        • 2.Bf4#
      • 1...Kf6!
    • 1.Be3?
      • 1...Kf6
        • 2.Bd4#
      • 1...Kd6!
    • 1.Bh6?
      • 1...Kf6
        • 2.Bg7#
      • 1...Kd6!
    • 1.Rxd5+?
      • 1...Kf6
        • 2.Bc3#
        • 2.Bg5#
      • 1...Kxd5!
  • Keys
    • 1.Sc5!
      • 1...Kd4
        • 2.Sc6#
      • 1...Kd6
        • 2.Bf4#
      • 1...Kf6
        • 2.Sd7#
      • 1...d4
        • 2.Se4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::B(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::B(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::B(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • R(C);CHECK,XP(a)
      • Refutation
        • K(b);P-FLIGHT,XR(C)
  • Actual
    • S(D);N_PINP(a)
    • Vars
      • K(b);S_FLIGHT::S(E)
      • K(b);S_FLIGHT::B(A)
      • K(b);S_FLIGHT::S(D)
      • P(a);SBLOCK::R(C)+S(D)
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