MESON Chess Problem Database

Problem Display
PID: 205116 (2B1b2n/4P1Q1/4Pp2/3P1k2/3b2NP/2p2K2/2P5/8 w - - 0 1)

Wainwright, Joseph CJ

American Chess Bulletin, 1913

2B1b2n/4P1Q1/4Pp2/3P1k2/3b2NP/2p2K2/2P5/8

#2

9 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qxf6#
    • 1...Bf2
      • 2.Qxf6#
    • 1...Be3
      • 2.Qxf6#
    • 1...Bc5
      • 2.Qxf6#
    • 1...Be5
      • 2.Se3#
      • 2.Sh6#
    • 1...Bb6
      • 2.Qxf6#
    • 1...Ba7
      • 2.Qxf6#
    • 1...Bf7
      • 2.exf7#
    • 1...Sf7
      • 2.Qh7#
  • Tries
    • 1.Se3+?
      • 1...Ke5
        • 2.Qg3#
      • 1...Bxe3!
    • 1.Qh7+?
      • 1...Sg6
        • 2.Qh5#
      • 1...Bg6!
  • Keys
    • 1.Qh6!
      • 1...Bb5
        • 2.Qh5#
      • 1...Bg1
        • 2.Qxf6#
      • 1...Bf2
        • 2.Qxf6#
      • 1...Be3
        • 2.Qxf6#
      • 1...Bc5
        • 2.Qxf6#
      • 1...Be5
        • 2.Se3#
      • 1...Bb6
        • 2.Qxf6#
      • 1...Ba7
        • 2.Qxf6#
      • 1...Ba4
        • 2.Qh5#
      • 1...Bh5
        • 2.Qxh5#
      • 1...Bc6
        • 2.Qh5#
      • 1...Bg6
        • 2.Qf4#
      • 1...Bd7
        • 2.Qh5#
      • 1...Bf7
        • 2.exf7#
      • 1...Sg6
        • 2.Qh5#
      • 1...Sf7
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD::QAR1(H),XP(d)
    • B(e);OGATE::B(I)+P(F),XB(e)
    • S(f);N_GUARD,S_CUTB(e)::QAB(H)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINP(d)::QAB(H)
      • Refutation
        • B(b);XS(C)
    • Try
      • Q(H);CHECK
      • Vars
        • S(f);P_SPINS(f),S_CUTB(e)::QAR2(H)
      • Refutation
        • B(e);P_SPINB(e)
  • Actual
    • Q(H);
    • Vars
      • B(e);N_GUARD::QAR2(H)
      • B(b);N_GUARD::QAR1(H),XP(d)
      • B(b);N_GUARD,SBLOCK::S(C)
      • B(e);N_GUARD,P_PINS(C)::QAR2(H),XB(e)
      • B(e);N_GUARD,P_PINP(E)::QAR2(H)
      • B(e);SBLOCK::QAR1(H)
      • B(e);OGATE::B(I)+P(F),XB(e)
      • S(f);S_CUTB(e)::QAR2(H)
      • S(f);N_GUARD,S_CUTB(e)::QAB(H)
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