MESON Chess Problem Database

Problem Display
PID: 56529 (3N4/2P1kP2/3p3K/2P1pP2/8/B6B/8/8 w - - 0 1)

Reddmann, Hauke

Comm., Die Schwalbe, 2001

3N4/2P1kP2/3p3K/2P1pP2/8/B6B/8/8

#2

8 + 3

23 Die Schwalbe 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.f8Q#
  • Tries
    • 1.c6?
      • 1...Kf6
        • 2.f8Q#
      • 1...Kf8
        • 2.Bxd6#
      • 1...e4!
    • 1.f6+?
      • 1...Kxf6
        • 2.f8Q#
      • 1...Kf8!
  • Keys
    • 1.cxd6+!
      • 1...Kf6
        • 2.f8Q#
        • 2.f8R#
      • 1...Kd7
        • 2.f6#
      • 1...Kf8
        • 2.d7#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(c);S_FLIGHT::P=Q
  • Tries
    • Try
      • P(C);P_PINP(b)
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::P=Q
        • K(c);S_FLIGHT::B(A),XP(b)
      • Refutation
        • P(a);
    • Try
      • P(D);CHECK
      • Vars
        • K(c);S_FLIGHT,XP(D)::P=Q
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • P(C);CHECK,XP(b)
    • Vars
      • K(c);S_FLIGHT::P=Q
      • K(c);P-FLIGHT::B(B)+P(D)
      • K(c);S_FLIGHT::B(A)+P(C)
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