MESON Chess Problem Database

Problem Display
PID: 149052 (8/8/8/1P5K/6Q1/1R6/N2bPp2/3krb2 w - - 0 1)

Sparke, Arthur M

2nd HM.=, Good Companions (May Meredith Ty.), 1918

8/8/8/1P5K/6Q1/1R6/N2bPp2/3krb2

#2

6 + 5

5454 Near Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rb1+?
      • 1...Kc2
        • 2.Qf5#
        • 2.Qe4#
        • 2.Qg6#
      • 1...Bc1!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Re3#
      • 1...Bxe2+
        • 2.Rf3#
      • 1...Kc2
        • 2.Rb4#
      • 1...Kxe2
        • 2.Qg4#
      • 1...Rxe2
        • 2.Rb1#
      • 1...Bc1
        • 2.Rb2#
      • 1...Bc3
        • 2.Rb2#
      • 1...Be3
        • 2.Rb2#
      • 1...Bb4
        • 2.Rb2#
      • 1...Bf4
        • 2.Rb2#
      • 1...Ba5
        • 2.Rb2#
      • 1...Bg5
        • 2.Rb2#
      • 1...Bh6
        • 2.Rb2#

This anticipates 16839(1943)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • B(d);P_SPINB(d)
  • Actual
    • Q(D);
    • Threat
      • QAB(D)+R(C)
    • Vars
      • B(c);CHECK,SBLOCK,XP(B)::QAB(D)+R(C)
      • K(a);S_FLIGHT::QAB(D)+R(C)
      • K(a);OGATEB,S_FLIGHT,XP(B)::QAB(D)
      • R(b);SBLOCK,XP(B)::QAB(D)+R(C),DCHECK
      • B(d);::QAB(D)+R(C)
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