MESON Chess Problem Database

Problem Display
PID: 15487 (5bn1/1P4rb/B7/2B5/N1Pp1P2/p2k4/p1pN2P1/2n1QK2 w - - 0 1)

Keller, Michael

2nd HM., Schach-Aktiv, 1984

5bn1/1P4rb/B7/2B5/N1Pp1P2/p2k4/p1pN2P1/2n1QK2

#2

10 + 10

3748 FIDE Album (1983-1985) 1992
4655 Michael Keller Ein Meister der Schachkomposition 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Se2
      • 2.Qxe2#
    • 1...Sb3
      • 2.Qe2#
  • Tries
    • 1.Bb6?
      • threat
        • 2.c5#
      • 1...Se2
        • 2.Qxe2#
      • 1...Bc5!
    • 1.Bd6?
      • threat
        • 2.c5#
      • 1...Se2
        • 2.Qxe2#
      • 1...Rxb7!
    • 1.Be7?
      • threat
        • 2.c5#
      • 1...Se2
        • 2.Qxe2#
      • 1...Rg6!
  • Keys
    • 1.Bb4!
      • threat
        • 2.c5#
      • 1...Rxb7
        • 2.Qg3#
      • 1...Se2
        • 2.Qxe2#
      • 1...Rg6
        • 2.Qe4#
      • 1...Bc5
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD::QAB1(A),XS(a)
    • S(a);N_GUARD::QAB1(A)
  • Tries
    • Try
      • B(H);
      • Threat
        • B(I)+P(F)
      • Vars
        • S(a);N_GUARD::QAB1(A),XS(a)
      • Refutation
        • B(i);
    • Try
      • B(H);
      • Threat
        • B(I)+P(F)
      • Vars
        • S(a);N_GUARD::QAB1(A),XS(a)
      • Refutation
        • R(g);XP(J)
    • Try
      • B(H);
      • Threat
        • B(I)+P(F)
      • Vars
        • S(a);N_GUARD::QAB1(A),XS(a)
      • Refutation
        • R(g);
  • Actual
    • B(H);
    • Threat
      • B(I)+P(F)
    • Vars
      • R(g);N_GUARD,XP(J)::QAR(A)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • R(g);S_CUTB(h)::QAB1(A)
      • B(i);N_GUARD::S(E),XB(i)
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