MESON Chess Problem Database

Problem Display
PID: 148427 (2R5/8/8/8/1K6/8/p6R/kb5Q w - - 0 1)

Shinkman, William Anthony

Source?, 1894

2R5/8/8/8/1K6/8/p6R/kb5Q

#2

4 + 3

5454 Near Snap 2013
133 The Problemist Supplement 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Qg2?
      • threat
        • 2.Qb2#
        • 2.Qg7#
      • 1...Bd3
        • 2.Qxa2#
        • 2.Qb2#
      • 1...Be4
        • 2.Qxa2#
        • 2.Qb2#
      • 1...Bf5
        • 2.Qxa2#
        • 2.Qb2#
      • 1...Bg6
        • 2.Qxa2#
        • 2.Qb2#
      • 1...Bh7
        • 2.Qxa2#
        • 2.Qb2#
      • 1...Bc2!
    • 1.Qd5?
      • threat
        • 2.Qd4#
        • 2.Qe5#
      • 1...Bd3
        • 2.Qxa2#
      • 1...Be4
        • 2.Qxa2#
      • 1...Bf5
        • 2.Qxa2#
      • 1...Bg6
        • 2.Qxa2#
      • 1...Bh7
        • 2.Qxa2#
      • 1...Bc2!
    • 1.Qa8?
      • 1...Bd3
        • 2.Qxa2#
      • 1...Be4
        • 2.Qxa2#
      • 1...Bf5
        • 2.Qxa2#
      • 1...Bg6
        • 2.Qxa2#
      • 1...Bh7
        • 2.Qxa2#
      • 1...Bc2!
  • Keys
    • 1.Rb2!
      • 1...Kxb2
        • 2.Qh8#

This anticipates 3211(1984)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);N_PINB(b)
      • Threat
        • DUALS(2)
      • Refutation
        • B(b);
    • Try
      • Q(A);N_PINB(b)
      • Threat
        • DUALS(2)
      • Vars
        • B(b);N_GUARD::QAR1(A),XP(c)
      • Refutation
        • B(b);
    • Try
      • Q(A);N_PINB(b),P_PINP(c)
      • Vars
        • B(b);N_GUARD::QAR1(A),XP(c)
      • Refutation
        • B(b);
  • Actual
    • R(B);
    • Vars
      • K(a);N_SPINB(b),OGATEB,S_FLIGHT,XR(B)::QAB(A)
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