MESON Chess Problem Database

Problem Display
PID: 253317 (1B3N2/8/5nK1/4pP2/2p1k3/4P2P/Q4P2/2N1nB2 w - - 0 1)

Hume, Arnold A

The Field, 1911

(First published on Sat Apr 22 1911)

1B3N2/8/5nK1/4pP2/2p1k3/4P2P/Q4P2/2N1nB2

#2

10 + 5

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qxc4#
    • 1...Sc2
      • 2.Bg2#
    • 1...Sg2
      • 2.Bxg2#
    • 1...Sd3
      • 2.Bg2#
    • 1...Sg4
      • 2.Qa8#
    • 1...Sh5
      • 2.Qa8#
    • 1...Sd7
      • 2.Qa8#
    • 1...Sh7
      • 2.Qa8#
    • 1...Se8
      • 2.Qa8#
    • 1...Sg8
      • 2.Qa8#
  • Tries
    • 1.Kxf6?
      • threat
        • 2.Qa8#
      • 1...Kd5
        • 2.Qxc4#
      • 1...Kf3!
    • 1.Se6?
      • 1...Kf3
        • 2.Sg5#
      • 1...Kd5
        • 2.Qxc4#
        • 2.Qa8#
      • 1...Sc2
        • 2.Bg2#
      • 1...Sg2
        • 2.Bxg2#
      • 1...Sd3
        • 2.Bg2#
      • 1...Sg4
        • 2.Qa8#
      • 1...Sd5
        • 2.Sg5#
      • 1...Sh5
        • 2.Qa8#
      • 1...Sd7
        • 2.Qa8#
      • 1...Sh7
        • 2.Qa8#
      • 1...Se8
        • 2.Qa8#
      • 1...Sg8
        • 2.Qa8#
      • 1...c3
        • 2.Sg5#
      • 1...Sf3!
    • 1.Bg2+?
      • 1...Sf3
        • 2.Qxc4#
      • 1...Sxg2!
    • 1.Qc2+?
      • 1...Kd5
        • 2.Qxc4#
      • 1...Sxc2
        • 2.Bg2#
      • 1...Sd3
        • 2.Bg2#
      • 1...Kf3!
  • Keys
    • 1.Sh7!
      • 1...Kf3
        • 2.Sg5#
      • 1...Kd5
        • 2.Qxc4#
      • 1...Sxh7
        • 2.Qa8#
      • 1...Sc2
        • 2.Bg2#
      • 1...Sg2
        • 2.Bxg2#
      • 1...Sd3
        • 2.Bg2#
      • 1...Sf3
        • 2.Sxf6#
      • 1...Sg4
        • 2.Qa8#
      • 1...Sd5
        • 2.Sg5#
      • 1...Sh5
        • 2.Qa8#
      • 1...Sd7
        • 2.Qa8#
      • 1...Se8
        • 2.Qa8#
      • 1...Sg8
        • 2.Qa8#
      • 1...c3
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);N_GUARD,P_SPINP(b),S_FLIGHT::QAB1(C),XP(b)
    • S(a);N_GUARD::B(B)
    • S(a);N_GUARD::B(B),XS(a)
    • S(e);N_GUARD::QAB(C)
  • Tries
    • Try
      • K(H);P-FLIGHT,XS(e)
      • Threat
        • QAB(C)
      • Vars
        • K(c);N_GUARD,P_SPINP(b),S_FLIGHT::QAB1(C),XP(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(J);
      • Vars
        • K(c);N_GUARD,S_FLIGHT::S(J)
        • S(a);N_GUARD::B(B)
        • S(a);N_GUARD::B(B),XS(a)
        • S(e);N_GUARD::QAB(C)
        • S(e);SBLOCK::S(J)
        • P(b);::S(J)
      • Refutation
        • S(a);
    • Try
      • B(B);CHECK
      • Vars
        • S(a);P_SPINS(a)::QAR2(C),XP(b)
      • Refutation
        • S(a);XB(B)
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAB1(C),XP(b)
        • S(a);XQ(C)::B(B)
        • S(a);P_SPINS(a)::B(B)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(J);
    • Vars
      • K(c);N_GUARD,S_FLIGHT::S(J)
      • K(c);N_GUARD,P_SPINP(b),S_FLIGHT::QAB1(C),XP(b)
      • S(e);N_GUARD,XS(J)::QAB(C)
      • S(a);N_GUARD::B(B)
      • S(a);N_GUARD::B(B),XS(a)
      • S(a);SBLOCK::S(J),XS(e)
      • S(e);N_GUARD::QAB(C)
      • S(e);SBLOCK::S(J)
      • P(b);::S(J)
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