MESON Chess Problem Database

Problem Display
PID: 159555 (2N5/4RK2/8/5k2/4p1pP/b3P3/5P2/5B2 w - - 0 1)

Suntrup, Bernhard

Neue Osnabrucker Zeitung, 2000

2N5/4RK2/8/5k2/4p1pP/b3P3/5P2/5B2

#2

7 + 4

15391 Problemschach-Jahrbuch (2000) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Sd6#
    • 1...Bb2
      • 2.Sd6#
    • 1...Bd6
      • 2.Sxd6#
    • 1...g3
      • 2.Bh3#
  • Tries
    • 1.Bg2?
      • threat
        • 2.Bxe4#
      • 1...g3
        • 2.Bh3#
      • 1...Bxe7!
    • 1.f3?
      • threat
        • 2.fxe4#
      • 1...exf3
        • 2.Bd3#
      • 1...gxf3
        • 2.Bh3#
      • 1...g3
        • 2.Bh3#
      • 1...Bxe7!
  • Keys
    • 1.f4!
      • threat
        • 2.Re5#
      • 1...Bxe7
        • 2.Sxe7#
      • 1...exf4 ep
        • 2.Bd3#
      • 1...gxf4 ep
        • 2.Bh3#
      • 1...g3
        • 2.Bh3#
      • 1...Bb2
        • 2.Sd6#
      • 1...Bd6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::S(G)
    • B(a);N_GUARD::S(G),XB(a)
    • P(c);OGATEB::B(A)
  • Tries
    • Try
      • B(A);
      • Threat
        • B(A),XP(b)
      • Vars
        • P(c);OGATEB::B(A)
      • Refutation
        • B(a);XR(E)
    • Try
      • P(B);
      • Threat
        • P(B),XP(b)
      • Vars
        • P(b);OGATEB,XP(B)::B(A)
        • P(c);OGATEB,XP(B)::B(A)
        • P(c);OGATEB::B(A)
      • Refutation
        • B(a);XR(E)
  • Actual
    • P(B);
    • Threat
      • R1(E)
    • Vars
      • B(a);XR(E)::S(G),XB(a)
      • P(b);EP,OGATEB,XP(B)::B(A)
      • P(c);EP,OGATEB,XP(B)::B(A)
      • P(c);OGATEB::B(A)
      • B(a);N_GUARD::S(G)
      • B(a);N_GUARD::S(G),XB(a)
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