MESON Chess Problem Database

Problem Display
PID: 189863 (3B3r/2N2R1p/n2k3K/3P3p/1p1P4/4p3/1QP1q3/8 w - - 0 1)

Hansen, Lorenz

Pittsburgh Gazette-Times, 1912

3B3r/2N2R1p/n2k3K/3P3p/1p1P4/4p3/1QP1q3/8

#2

8 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sb8
      • 2.Qxb4#
  • Tries
    • 1.Qxb4+?
      • 1...Sc5
        • 2.Qxc5#
        • 2.Qb6#
      • 1...Sxb4!
  • Keys
    • 1.c4!
      • threat
        • 2.Sb5#
      • 1...Qxc4
        • 2.Qh2#
      • 1...Sxc7
        • 2.Bxc7#
        • 2.Qxb4#
      • 1...bxc4 ep
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(e);N_GUARD::QAB(A),XP(c)
  • Tries
    • Try
      • Q(A);CHECK,XP(c)
      • Refutation
        • S(e);XQ(A)
  • Actual
    • P(B);
    • Threat
      • S(F)
    • Vars
      • Q(a);OGATE,XP(B)::QAB(A)
      • P(c);EP,OGATE,XP(B)::QAR2(A)
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