MESON Chess Problem Database

Problem Display
PID: 232734 (2Q5/6P1/3Kn1p1/1p1N1bP1/3k2p1/5Pp1/8/b3NB2 w - - 0 1)

Hahnel, Peter

Freie Presse, 1993

2Q5/6P1/3Kn1p1/1p1N1bP1/3k2p1/5Pp1/8/b3NB2

#2

8 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bc3
      • 2.Qxc3#
    • 1...Bc2
      • 2.Sxc2#
    • 1...Sf4
      • 2.Qc5#
    • 1...Sc5
      • 2.Qxc5#
    • 1...Sxg5
      • 2.Qc5#
    • 1...Sxg7
      • 2.Qc5#
    • 1...Sd8
      • 2.Qc5#
    • 1...Sf8
      • 2.Qc5#
    • 1...b4
      • 2.Qc4#
  • Tries
    • 1.Qxe6?
      • threat
        • 2.Qe3#
        • 2.Qe5#
        • 2.Qf6#
      • 1...Bxe6
        • 2.Sc2#
      • 1...gxf3
        • 2.Sxf3#
        • 2.Qe3#
        • 2.Qe5#
      • 1...Be4
        • 2.Qxe4#
        • 2.Qe5#
        • 2.Qf6#
      • 1...Bd3!
    • 1.Qc1?
      • threat
        • 2.Qe3#
        • 2.Qxa1#
      • 1...gxf3
        • 2.Qe3#
      • 1...Bb2
        • 2.Qxb2#
        • 2.Qe3#
      • 1...Bc3
        • 2.Qe3#
        • 2.Qxc3#
      • 1...Bb1
        • 2.Qe3#
      • 1...Bd3!
  • Keys
    • 1.Qc2!
      • 1...Bxc2
        • 2.Sxc2#
      • 1...Sxg5
        • 2.Qc5#
      • 1...Sxg7
        • 2.Qc5#
      • 1...gxf3
        • 2.Sxf3#
      • 1...Bb2
        • 2.Qxb2#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Be4
        • 2.Qxe4#
      • 1...Sf4
        • 2.Qc5#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sc7
        • 2.Qc5#
      • 1...Sd8
        • 2.Qc5#
      • 1...Sf8
        • 2.Qc5#
      • 1...g2
        • 2.Qf2#
      • 1...b4
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAB1(H),XB(a)
    • B(f);N_GUARD::S(A),XB(f)
    • S(g);N_GUARD::QAB1(H)
    • S(g);N_GUARD::QAB1(H),XS(g)
    • S(g);N_GUARD,XP(E)::QAB1(H)
    • S(g);N_GUARD,XP(G)::QAB1(H)
    • P(e);N_GUARD::QAR1(H)
  • Tries
    • Try
      • Q(H);XS(g)
      • Threat
        • DUALS(3)
      • Vars
        • B(f);N_GUARD,XQ(H)::S(A)
      • Refutation
        • B(f);
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);XP(C)::QAB1(H)
        • B(f);::QAB1(H)
      • Refutation
        • B(f);
  • Actual
    • Q(H);
    • Vars
      • B(f);XQ(H)::S(A),XB(f)
      • S(g);N_GUARD,XP(E)::QAB1(H)
      • S(g);N_GUARD,XP(G)::QAB1(H)
      • P(d);XP(C)::S(A),XP(d)
      • B(a);N_GUARD::QAB(H),XB(a)
      • B(a);N_GUARD::QAB1(H),XB(a)
      • B(f);N_GUARD::QAR1(H),XB(f)
      • S(g);N_GUARD::QAB1(H)
      • S(g);N_GUARD::QAB1(H),XS(g)
      • P(b);N_GUARD::QAB(H)
      • P(e);N_GUARD::QAR1(H)
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