MESON Chess Problem Database

Problem Display
PID: 42486 (8/BN1b4/6R1/3B2P1/5kpN/2ppR3/3b4/5K2 w - - 0 1)

Dittrich, Stefan

2nd Prize, Suomen Shakki, 1982

8/BN1b4/6R1/3B2P1/5kpN/2ppR3/3b4/5K2

#2

8 + 6

117 Suomen Shakki 1984
3752 FIDE Album (1980-1982) 1988

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe3
      • 2.Bb8#
    • 1...Bf5
      • 2.Sg2#
    • 1...g3
      • 2.Re4#
  • Tries
    • 1.Kg2?
      • threat
        • 2.Re4#
      • 1...Bxe3
        • 2.Bb8#
      • 1...Bf5!
    • 1.Sd6?
      • threat
        • 2.Sg2#
      • 1...g3
        • 2.Re4#
      • 1...Bxe3!
    • 1.Rxd3?
      • threat
        • 2.Bb8#
      • 1...Ke5
        • 2.Bb8#
      • 1...g3!
    • 1.Rf6+?
      • 1...Bf5
        • 2.Rxf5#
      • 1...Kxg5!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Sxd3#
      • 1...Kxe3
        • 2.Se6#
      • 1...Bxe3
        • 2.Bb8#
      • 1...g3
        • 2.Re4#
      • 1...Bb5
        • 2.Se6#
      • 1...Bf5
        • 2.Sg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK,XR(B)::B(G)
    • B(f);SBLOCK::S(C)
    • P(e);SBLOCK::R1(B)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • R1(B)
      • Vars
        • B(a);SBLOCK,XR(B)::B(G)
      • Refutation
        • B(f);
    • Try
      • S(H);
      • Threat
        • S(C)
      • Vars
        • P(e);SBLOCK::R1(B)
      • Refutation
        • B(a);XR(B)
    • Try
      • R(B);XP(c)
      • Threat
        • B(G)
      • Vars
        • K(d);S_FLIGHT::B(G)
      • Refutation
        • P(e);
    • Try
      • R(F);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::R1(F),XB(f)
      • Refutation
        • K(d);S_FLIGHT,XP(E)
  • Actual
    • S(H);
    • Threat
      • S(H),XP(c)
    • Vars
      • K(d);S_FLIGHT,XR(B)::B(G)+S(H)
      • B(a);SBLOCK,XR(B)::B(G)
      • P(e);SBLOCK::R1(B)
      • B(f);N_GUARD::S(H)
      • B(f);SBLOCK::S(C)
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