MESON Chess Problem Database

Problem Display
PID: 243170 (nB2NNK1/8/3p1pp1/1B1k1q2/1pRp4/2bp4/8/2R1Q3 w - - 0 1)

Banny, Dimitry Nikolaevich

1/2 Prize, Bulletin ZSchK, 1985-1986

nB2NNK1/8/3p1pp1/1B1k1q2/1pRp4/2bp4/8/2R1Q3

#2

8 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Sxf6#
    • 1...Qg4
      • 2.Sxf6#
    • 1...Qe6+
      • 2.Qxe6#
    • 1...Qd7
      • 2.Sxf6#
    • 1...Qc8
      • 2.Sxf6#
    • 1...Qf1
      • 2.Qe6#
    • 1...Qf2
      • 2.Qe6#
    • 1...Qf3
      • 2.Qe6#
    • 1...Qf4
      • 2.Qe6#
    • 1...Qg5
      • 2.Qe6#
    • 1...Qh5
      • 2.Sxf6#
      • 2.Qe6#
    • 1...Ba1
      • 2.Bc6#
    • 1...Bb2
      • 2.Bc6#
    • 1...Bd2
      • 2.Bc6#
    • 1...Sb6
      • 2.Sc7#
    • 1...Sc7
      • 2.Sxc7#
  • Tries
    • 1.Sxd6?
      • threat
        • 2.Bc6#
      • 1...Qe6+
        • 2.Qxe6#
      • 1...Bxe1
        • 2.Rc5#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Qd7
        • 2.Qe4#
      • 1...Qc8
        • 2.Qe4#
      • 1...Sc7!
  • Keys
    • 1.Bxd6!
      • threat
        • 2.Rc5#
      • 1...Qe6+
        • 2.Qxe6#
      • 1...Bxe1
        • 2.Bc6#
      • 1...Qc8
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 13
  • Sets
    • Q(f);N_GUARD::S(F),XP(h)
    • Q(f);CHECK,N_GUARD::QAB1(B),XQ(f)
    • Q(f);N_GUARD::QAB1(B)
    • B(a);::B(D)
    • S(j);N_GUARD::S(F)
    • S(j);N_GUARD::S(F),XS(j)
  • Tries
    • Try
      • S(F);XP(g)
      • Threat
        • B(D)
      • Vars
        • Q(f);CHECK,N_GUARD::QAB1(B),XQ(f)
        • B(a);XQ(B)::R1(C)
        • Q(f);N_GUARD::QAB1(B),XQ(f)
        • Q(f);N_GUARD::QAB1(B)
        • Q(f);N_GUARD,P_PINS(G)::QAB1(B)
      • Refutation
        • S(j);
  • Actual
    • B(E);XP(g)
    • Threat
      • R1(C)
    • Vars
      • Q(f);CHECK,N_GUARD::QAB1(B),XQ(f)
      • B(a);XQ(B)::B(D)
      • Q(f);N_GUARD::QAB(B)
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