MESON Chess Problem Database

Problem Display
PID: 257673 (4r3/2BRp3/1P6/3P4/1K1kp3/4p3/2P1bP2/6nQ w - - 0 1)

Bohm, Joseph

Wiener Schachzeitung, 1937

4r3/2BRp3/1P6/3P4/1K1kp3/4p3/2P1bP2/6nQ

#2

8 + 7

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.c3#
    • 1...Sf3
      • 2.Qa1#
    • 1...Sh3
      • 2.Qa1#
    • 1...e5
      • 2.dxe5 ep#
    • 1...e6
      • 2.dxe6#
  • Tries
    • 1.Qxg1?
      • threat
        • 2.Qa1#
        • 2.fxe3#
      • 1...Ra8
        • 2.fxe3#
      • 1...Bd1
        • 2.Qxd1#
        • 2.fxe3#
      • 1...Bf1
        • 2.fxe3#
      • 1...exf2!
    • 1.Qh8+?
      • 1...e5
        • 2.dxe5 ep#
      • 1...Rxh8!
  • Keys
    • 1.f4!
      • threat
        • 2.Be5#
      • 1...exf4 ep
        • 2.Qh4#
      • 1...Sf3
        • 2.Qa1#
      • 1...e5
        • 2.dxe5 ep#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(b);SBLOCK::P(B)
    • S(a);OGATE::QAB(A)
    • P(f);OGATE::R(H)+P(E),XP(f),EP
    • P(f);OGATE::R(H)+P(E),XP(f)
  • Tries
    • Try
      • Q(A);XS(a)
      • Threat
        • DUALS(2)
      • Vars
        • R(g);::P(C),XP(c)
        • B(b);::P(C),XP(c)
      • Refutation
        • P(c);P_SPINP(c),XP(C)
    • Try
      • Q(A);CHECK
      • Vars
        • P(f);OGATE,P_SPINP(f)::R(H)+P(E)DCHECK,XP(f),EP
      • Refutation
        • R(g);XQ(A)
  • Actual
    • P(C);
    • Threat
      • B(G)
    • Vars
      • P(e);EP,OGATEB,XP(C)::QAR(A)
      • S(a);OGATE::QAB(A)
      • P(f);OGATE::R(H)+P(E),XP(f),EP
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