MESON Chess Problem Database

Problem Display
PID: 85787 (8/8/8/8/3B4/6b1/6RP/4RK1k w - - 0 1)

Speckmann, Werner

Schach-Report/Deutsche Schachblatter, 1989

8/8/8/8/3B4/6b1/6RP/4RK1k

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf2
      • 2.Kxf2#
    • 1...Bf4
      • 2.Kf2#
    • 1...Be5
      • 2.Kf2#
    • 1...Bd6
      • 2.Kf2#
    • 1...Bc7
      • 2.Kf2#
    • 1...Bb8
      • 2.Kf2#
  • Tries
    • 1.Ree2?
      • threat
        • 2.Rg1#
      • 1...Bxh2
        • 2.Rxh2#
      • 1...Bf2!
  • Keys
    • 1.Be5!
      • 1...Bxe1
        • 2.Rg1#
      • 1...Bxh2
        • 2.Rxh2#
      • 1...Bxe5
        • 2.Kf2#
      • 1...Bf2
        • 2.Kxf2#
      • 1...Bf4
        • 2.Kf2#
      • 1...Bh4
        • 2.Rg1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(b);::R(A)+K(B),XB(b)
    • B(b);::R(A)+K(B)
  • Tries
    • Try
      • R(A);
      • Threat
        • R1(C)
      • Vars
        • B(b);OGATE,XP(D)::R1(C),XB(b)
      • Refutation
        • B(b);
  • Actual
    • B(E);
    • Vars
      • B(b);XR(A)::R1(C)
      • B(b);OGATE,XP(D)::R1(C),XB(b)
      • B(b);XB(E)::R(A)+K(B)
      • B(b);::R(A)+K(B),XB(b)
      • B(b);::R(A)+K(B)
      • B(b);::R1(C)
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