MESON Chess Problem Database

Problem Display
PID: 2743 (8/2p4N/2B1p3/2pPkP2/2Q2p2/4b2K/7B/8 w - - 0 1)

Thursby, John Ormerod Scarlett

The Field, 1883

(First published on Sat Mar 10 1883)

8/2p4N/2B1p3/2pPkP2/2Q2p2/4b2K/7B/8

#2

7 + 6

3357 75 Chess Problems 1883
15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qxf4#
    • 1...Bf2
      • 2.Qxf4#
    • 1...exd5
      • 2.Qxd5#
  • Tries
    • 1.Qe4+?
      • 1...Kd6
        • 2.Qxe6#
      • 1...Kxe4!
    • 1.dxe6?
      • threat
        • 2.Qd5#
      • 1...Kxf5
        • 2.Qe4#
      • 1...Kd6!
  • Keys
    • 1.d6!
      • 1...Kxf5
        • 2.Qe4#
      • 1...Kxd6
        • 2.Qxe6#
      • 1...exf5
        • 2.Qd5#
      • 1...cxd6
        • 2.Qe4#
      • 1...Bc1
        • 2.Qxc5#
      • 1...Bg1
        • 2.Qxf4#
      • 1...Bd2
        • 2.Qxc5#
      • 1...Bf2
        • 2.Qxf4#
      • 1...Bd4
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::QAB1(C),XP(b)
    • P(e);OGATE,XP(D)::QAR1(C),XP(e)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAR1(C),XP(e)
      • Refutation
        • K(d);N_SPINP(b),P-FLIGHT,XQ(C)
    • Try
      • P(D);XP(e)
      • Threat
        • QAR1(C)
      • Vars
        • K(d);N_SPINP(b),P-FLIGHT,XP(E)::QAB1(C)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • P(D);
    • Vars
      • K(d);N_SPINP(b),P-FLIGHT,XP(E)::QAB1(C)
      • K(d);S_FLIGHT,XP(D)::QAR1(C),XP(e)
      • P(e);N_GUARD,SBLOCK,XP(E)::QAR1(C)
      • P(f);SBLOCK,XP(D)::QAR1(C)
      • B(a);N_GUARD::QAR2(C),XP(c)
      • B(a);N_GUARD::QAB1(C),XP(b)
      • B(a);SBLOCK::QAR1(C),XP(e)
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