MESON Chess Problem Database

Problem Display
PID: 151582 (Q7/8/5R2/2ppp3/4k3/8/b2K4/8 w - - 0 1)

Shinkman, William Anthony

Source?, 0000

Q7/8/5R2/2ppp3/4k3/8/b2K4/8

#2

3 + 5

119 Tidskrift for Schack 1909
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qa3?
      • threat
        • 2.Qd3#
        • 2.Qe3#
      • 1...Kd4
        • 2.Qd3#
      • 1...Bb1
        • 2.Qe3#
      • 1...Bc4
        • 2.Qe3#
      • 1...c4
        • 2.Qe3#
      • 1...d4
        • 2.Qf3#
      • 1...Bb3!
    • 1.Qg8?
      • threat
        • 2.Qg4#
      • 1...d4
        • 2.Qg2#
      • 1...Kd4!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qh4#
      • 1...Kd4
        • 2.Rf4#
      • 1...d4
        • 2.Qh1#

This anticipates 172489(2001)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);N_PINP(d)
      • Threat
        • DUALS(2)
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
        • B(a);::QAR1(C)
        • P(c);::QAR1(C)
        • P(d);SBLOCK::QAB1(C)
      • Refutation
        • B(a);
    • Try
      • Q(C);N_PINP(d)
      • Threat
        • QAR2(C)
      • Vars
        • P(d);SBLOCK::QAB(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(C);N_PINP(d)
    • Threat
      • QAR(C)
    • Vars
      • K(b);P-FLIGHT::R(B)
      • P(d);SBLOCK::QAB(C)
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