MESON Chess Problem Database

Problem Display
PID: 156211 (5R2/B1R2B2/1n6/4p3/4k2K/3b4/5P2/Q7 w - - 0 1)

Mead, Walter

The Field, 1882

(First published on Sat Dec 9 1882)

5R2/B1R2B2/1n6/4p3/4k2K/3b4/5P2/Q7

#2

7 + 4

15351 SCPF/BCPS Black Books 2016
15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.Bg6#
  • Tries
    • 1.Bd5+?
      • 1...Sxd5
        • 2.Qh1#
        • 2.f3#
      • 1...Kxd5!
    • 1.Qxe5+?
      • 1...Kf3
        • 2.Bd5#
      • 1...Kxe5!
    • 1.Qh1+?
      • 1...Kd4
        • 2.Bxb6#
        • 2.Rd8#
        • 2.Qd5#
      • 1...Kf5
        • 2.Qf3#
      • 1...Kf4!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qg4#
      • 1...Kd4
        • 2.Rc4#
      • 1...Kf4
        • 2.Qg4#
      • 1...Kf5
        • 2.Qf3#
      • 1...Bb1
        • 2.Bg6#
      • 1...Bf1
        • 2.Bg6#
      • 1...Bc2
        • 2.Bg6#
      • 1...Be2
        • 2.Bg6#
      • 1...Bc4
        • 2.Bg6#
      • 1...Bb5
        • 2.Bg6#
      • 1...Ba6
        • 2.Bg6#
      • 1...Sd5
        • 2.Bg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • S(d);SBLOCK::B(F)
  • Tries
    • Try
      • B(F);CHECK
      • Refutation
        • K(b);S_FLIGHT,XB(F)
    • Try
      • Q(A);CHECK,XP(c)
      • Vars
        • K(b);S_FLIGHT::R(G)+B(F),DCHECK
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • K(b);P-FLIGHT,P_SPINB(a),P_SPINS(d)::R1(E)
      • K(b);P-FLIGHT::QAR1(A)
      • K(b);S_FLIGHT::QAR2(A)
      • B(a);::B(F)
      • S(d);SBLOCK::B(F)
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