MESON Chess Problem Database

Problem Display
PID: 29888 (B1nK4/rp2p3/4N2B/1R1P4/1QNPkPP1/2P1p3/2bPPb2/5R2 w - - 0 1)

Kuhlmann, Joerg

Zirkwitz, Thorsten

6th HM., Reiners MT, 1990

B1nK4/rp2p3/4N2B/1R1P4/1QNPkPP1/2P1p3/2bPPb2/5R2

#2

15 + 8

273 Mat Plus 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qxb1#
    • 1...Bd1
      • 2.d3#
    • 1...Bb3
      • 2.d3#
    • 1...Ba4
      • 2.d3#
    • 1...Be1
      • 2.Sg5#
    • 1...Bg1
      • 2.Sg5#
    • 1...Bg3
      • 2.Sg5#
  • Tries
    • 1.Sxe3?
      • threat
        • 2.Sc5#
      • 1...Bxe3
        • 2.Sg5#
      • 1...b6!
    • 1.d6?
      • threat
        • 2.Re5#
      • 1...Ra5
        • 2.Bxb7#
      • 1...exd6!
  • Keys
    • 1.Qxe7!
      • threat
        • 2.Qh7#
      • 1...Sxe7
        • 2.Sd6#
      • 1...Bh4
        • 2.Sg5#
      • 1...Sd6
        • 2.Sxd6#
        • 2.Sc7#
        • 2.Sg7#
        • 2.Sf8#
      • 1...b6
        • 2.Sc5#

There are these afters: 132441

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • B(a);OGATEB::QAB(E),XB(a)
    • B(a);N_GUARD::P(B)
    • B(b);::S(L)
  • Tries
    • Try
      • S(F);XP(c)
      • Threat
        • S(L)
      • Vars
        • B(b);XS(F)::S(L)
      • Refutation
        • P(f);
    • Try
      • P(K);P_PINP(f)
      • Threat
        • R1(J)
      • Vars
        • R(e);N_GUARD::B(N),XP(f)
      • Refutation
        • P(g);XP(K)
  • Actual
    • Q(E);XP(g)
    • Threat
      • QAB(E)
    • Vars
      • S(h);N_GUARD,XQ(E)::S(F)
      • B(b);P_PINQ(E)::QAR(E)+S(L),DCHECK
      • P(f);::QAR(E)+S(L),DCHECK
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