MESON Chess Problem Database

Problem Display
PID: 153728 (1b6/3p4/Q7/2N1Rp1n/5knK/2P4b/4P3/1q2r3 w - - 0 1)

Miles, John Augustus

Cheltenham Examiner, 1890

(First published on Tue Jul 29 1890)

1b6/3p4/Q7/2N1Rp1n/5knK/2P4b/4P3/1q2r3

#2

6 + 9

15239 Valois Notebooks 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.Sd3#
    • 1...Qd3
      • 2.Sxd3#
    • 1...Qa1
      • 2.Sd3#
    • 1...Qc1
      • 2.Sd3#
    • 1...Qb2
      • 2.Sd3#
    • 1...Qb3
      • 2.Sd3#
    • 1...Qb4
      • 2.Sd3#
    • 1...Qb6
      • 2.Sd3#
    • 1...Qb7
      • 2.Sd3#
    • 1...Sxe5
      • 2.Qh6#
  • Tries
    • 1.Qc4+?
      • 1...Kxe5
        • 2.Qd4#
      • 1...Qe4!
    • 1.Qa4+?
      • 1...Kxe5
        • 2.Qd4#
      • 1...Qb4
        • 2.Sd3#
      • 1...Qe4!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Rxf5#
      • 1...Kxe5
        • 2.Qd4#
      • 1...Qxd3
        • 2.Sxd3#
      • 1...Bxe5
        • 2.Qf3#
      • 1...Sxe5
        • 2.Qd2#
      • 1...Sf2
        • 2.Qe3#
      • 1...Sh2
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sgf6
        • 2.Qe3#
      • 1...Sh6
        • 2.Qe3#
      • 1...Sg3
        • 2.Qxg3#
      • 1...Sg7
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 9
    • REMOVED MATES = 8
  • Sets
    • Q(a);N_GUARD::S(D)
    • Q(a);N_GUARD::S(D),XQ(a)
    • S(e);N_GUARD,SBLOCK,XR(E)::QAB(F)
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);S_FLIGHT,XR(E)::QAB1(F)
      • Refutation
        • Q(a);P_SPINQ(a)
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);S_FLIGHT,XR(E)::QAB1(F)
        • Q(a);P_SPINQ(a)::S(D)
      • Refutation
        • Q(a);P_SPINQ(a)
  • Actual
    • Q(F);
    • Threat
      • R1(E),XP(f)
    • Vars
      • K(d);S_FLIGHT,XR(E)::QAB1(F)
      • Q(a);XQ(F)::S(D),XQ(a)
      • B(i);SBLOCK,XR(E)::QAR1(F)
      • S(e);N_GUARD,SBLOCK,XR(E)::QAB(F)
      • S(e);N_GUARD::QAB1(F)
      • S(e);N_GUARD::QAB1(F),XS(e)
      • S(g);N_GUARD::QAB1(F),XS(g)
      • S(g);N_GUARD::QAB1(F)
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