MESON Chess Problem Database

Problem Display
PID: 232432 (5Q2/2n5/1N6/7P/2p1k2p/6Bn/2PPN3/3B1K2 w - - 0 1)

Degenkolbe, Mirko

Freie Presse, 1987

5Q2/2n5/1N6/7P/2p1k2p/6Bn/2PPN3/3B1K2

#2

9 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sg1
      • 2.Qf4#
    • 1...Sf2
      • 2.Qf4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sg5
      • 2.Qf4#
  • Tries
    • 1.Kg2?
      • threat
        • 2.Qf3#
      • 1...Sf4+
        • 2.Qxf4#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sg5
        • 2.Qf4#
      • 1...hxg3!
    • 1.Bxc7?
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sg5
        • 2.Qf4#
      • 1...c3!
    • 1.d3+?
      • 1...Ke3
        • 2.Sxc4#
      • 1...cxd3!
  • Keys
    • 1.Qd6!
      • 1...Kf3
        • 2.Sc3#
      • 1...Kf5
        • 2.Qg6#
      • 1...hxg3
        • 2.Sxg3#
      • 1...Sb5
        • 2.Qd5#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sf2
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sg5
        • 2.Qf4#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sa6
        • 2.Qd5#
      • 1...Se6
        • 2.Qd5#
      • 1...Sa8
        • 2.Qd5#
      • 1...Se8
        • 2.Qd5#
      • 1...c3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAR1(I)
    • S(a);N_GUARD::QAR1(I),XS(a)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • QAB1(I)
      • Vars
        • S(a);CHECK,N_GUARD::QAR1(I),XS(a)
        • S(a);N_GUARD::QAR1(I)
      • Refutation
        • P(d);XB(F)
    • Try
      • B(F);XS(e)
      • Vars
        • S(a);N_GUARD::QAR1(I),XS(a)
        • S(a);N_GUARD::QAR1(I)
      • Refutation
        • P(b);
    • Try
      • P(D);CHECK
      • Vars
        • K(c);P-FLIGHT::S(H),XP(b)
      • Refutation
        • P(b);XP(D)
  • Actual
    • Q(I);
    • Vars
      • K(c);S_FLIGHT::B(A)+S(E)
      • K(c);S_FLIGHT::QAB1(I)
      • P(d);XB(F)::S(E),XP(d)
      • S(e);N_GUARD::QAB1(I)
      • S(a);N_GUARD::QAR1(I)
      • S(a);N_GUARD::QAR1(I),XS(a)
      • S(e);N_GUARD::QAB1(I),XS(e)
      • P(b);N_GUARD::QAB1(I)
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