MESON Chess Problem Database

Problem Display
PID: 175199 (2N5/8/K1p1p3/2pk3r/8/2P5/8/1B2Q2b w - - 0 1)

Laws, Benjamin Glover

San Francisco Chronicle, 1902

2N5/8/K1p1p3/2pk3r/8/2P5/8/1B2Q2b

#2

5 + 6

6490 yacpdb 2018
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Qxe4#
  • Tries
    • 1.Qd2+?
      • 1...Kc4
        • 2.Ba2#
      • 1...Ke5!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Sb6#
      • 1...Kc4
        • 2.Ba2#
      • 1...e5
        • 2.Qg8#
      • 1...Re5
        • 2.Qd3#
      • 1...c4
        • 2.Qd6#

Anticipated by 224556(1888)

This anticipates 9736(1909)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD::QAB1(B),XB(a)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);S_FLIGHT::B(A)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(B);
    • Threat
      • S(E)
    • Vars
      • K(c);S_FLIGHT::B(A)
      • P(f);OGATEB,SBLOCK::QAB(B)
      • R(d);SBLOCK::QAR2(B)
      • P(b);SBLOCK::QAR1(B)
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