MESON Chess Problem Database

Problem Display
PID: 103613 (8/8/8/2p4p/2P4B/Npk1K3/1N6/R7 w - - 0 1)

Kahane, Ernest

Bulletin Ouvrier des Echecs, 1953

8/8/8/2p4p/2P4B/Npk1K3/1N6/R7

#2

6 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxb2
      • 2.Bf6#
    • 1...Kb4
      • 2.Be1#
  • Tries
    • 1.Ke2?
      • 1...Kxb2
        • 2.Bf6#
      • 1...Kb4
        • 2.Be1#
      • 1...Kd4!
    • 1.Ke4?
      • 1...Kxb2
        • 2.Bf6#
      • 1...Kb4
        • 2.Be1#
      • 1...Kd2!
    • 1.Kf4?
      • 1...Kxb2
        • 2.Bf6#
      • 1...Kb4
        • 2.Be1#
      • 1...Kd4
        • 2.Sb5#
        • 2.Bf6#
      • 1...Kd2!
    • 1.Bg3?
      • 1...Kxb2
        • 2.Be5#
      • 1...Kb4
        • 2.Be1#
      • 1...h4!
    • 1.Ra2?
      • threat
        • 2.Be1#
      • 1...Kb4
        • 2.Be1#
      • 1...bxa2!
  • Keys
    • 1.Kf3!
      • 1...Kxb2
        • 2.Bf6#
      • 1...Kd2
        • 2.Be1#
      • 1...Kb4
        • 2.Be1#
      • 1...Kd4
        • 2.Bf6#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT,XS(B)::B(F)
    • K(b);S_FLIGHT::B(F)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT,XS(B)::B(F)
        • K(b);S_FLIGHT::B(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT,XS(B)::B(F)
        • K(b);S_FLIGHT::B(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT,XS(B)::B(F)
        • K(b);S_FLIGHT::B(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(b);S_FLIGHT,XS(B)::B(F)
        • K(b);S_FLIGHT::B(F)
      • Refutation
        • P(d);
    • Try
      • R(A);
      • Threat
        • B(F)
      • Vars
        • K(b);S_FLIGHT::B(F)
      • Refutation
        • P(a);XR(A)
  • Actual
    • K(D);P-FLIGHT
    • Vars
      • K(b);S_FLIGHT,XS(B)::B(F)
      • K(b);S_FLIGHT::B(F)
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