MESON Chess Problem Database

Problem Display
PID: 79430 (4K1B1/8/4N3/pR1P1P1Q/r3kPP1/1R4n1/2N2r2/2b3q1 w - - 0 1)

Bruch, Wieland

5th Prize, Problem-Forum, 2003/II

4K1B1/8/4N3/pR1P1P1Q/r3kPP1/1R4n1/2N2r2/2b3q1

#2

11 + 7

23 Die Schwalbe 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Re3#
    • 1...Ba3
      • 2.Re3#
    • 1...Be3
      • 2.Rxe3#
    • 1...Sxf5
      • 2.Qxf5#
  • Tries
    • 1.d6?
      • threat
        • 2.Re5#
      • 1...Rxf4
        • 2.Sg5#
      • 1...Be3
        • 2.Rxe3#
      • 1...Bb2
        • 2.Re3#
      • 1...Bxf4!
    • 1.f6?
      • threat
        • 2.Qe5#
      • 1...Bxf4
        • 2.Sc5#
      • 1...Sxh5
        • 2.Bh7#
      • 1...Be3
        • 2.Rxe3#
      • 1...Bb2
        • 2.Re3#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Rxf4!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qe5#
      • 1...Rxf4
        • 2.Sg5#
      • 1...Bxf4
        • 2.Sc5#
      • 1...Be3
        • 2.Rxe3#
      • 1...Bb2
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::R1(B)
    • B(a);N_GUARD::R1(B),XB(a)
    • S(d);OGATE,XP(G)::QAB1(H),XS(d)
  • Tries
    • Try
      • P(F);
      • Threat
        • R1(E)
      • Vars
        • R(c);SBLOCK,XP(C)::S(I)
        • B(a);N_GUARD::R1(B),XB(a)
        • B(a);N_GUARD::R1(B)
      • Refutation
        • B(a);XP(C)
    • Try
      • P(G);
      • Threat
        • QAR1(H)
      • Vars
        • B(a);SBLOCK,XP(C)::S(I)
        • S(d);N_GUARD,XQ(H)::B(K)
        • B(a);N_GUARD::R1(B),XB(a)
        • B(a);N_GUARD::R1(B)
        • S(d);N_GUARD::QAB1(H),XS(d)
      • Refutation
        • R(c);XP(C)
  • Actual
    • Q(H);
    • Threat
      • QAR1(H)
    • Vars
      • R(c);SBLOCK,XP(C)::S(I)
      • B(a);SBLOCK,XP(C)::S(I)
      • B(a);N_GUARD::R1(B),XB(a)
      • B(a);N_GUARD::R1(B)
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