MESON Chess Problem Database

Problem Display
PID: 262172 (2n5/1Kp5/3kP3/B5Q1/2PP4/4p3/8/2RR4 w - - 0 1)

Barnes, Barry Peter

Schweizerische Schachzeitung, 2008

2n5/1Kp5/3kP3/B5Q1/2PP4/4p3/8/2RR4

#2

8 + 4

3713 Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Se7
      • 2.Qe5#
  • Tries
    • 1.Qf6?
      • threat
        • 2.Bxc7#
      • 1...c5
        • 2.Bc7#
      • 1...c6
        • 2.Bc7#
      • 1...Sb6!
  • Keys
    • 1.d5!
      • threat
        • 2.c5#
      • 1...Kc5
        • 2.d6#
      • 1...c5
        • 2.Bc7#

This anticipates 149690(2013)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(d);SBLOCK::QAB1(F)
  • Tries
    • Try
      • Q(F);
      • Threat
        • B(E),XP(c)
      • Vars
        • P(c);::B(E)
      • Refutation
        • S(d);
  • Actual
    • P(D);
    • Threat
      • P(C)
    • Vars
      • K(b);OGATE,S_FLIGHT::QAR(F)+P(D)
      • P(c);SBLOCK::B(E)
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