MESON Chess Problem Database

Problem Display
PID: 190149 (6K1/8/4p3/5Npk/5Qb1/8/4NB2/8 w - - 0 1)

Soares, Macedo

Imparcial - Diario Illustrado do Rio de Janeiro, 1913

6K1/8/4p3/5Npk/5Qb1/8/4NB2/8

#2

5 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Sg7+?
      • 1...Kh6
        • 2.Qf6#
      • 1...Kg6!
    • 1.Be3?
      • threat
        • 2.Qxg5#
      • 1...Kg6
        • 2.Qxg5#
      • 1...gxf4!
  • Keys
    • 1.Bh4!
      • threat
        • 2.Qxg5#
      • 1...Kg6
        • 2.Qxg5#
      • 1...gxf4
        • 2.Sxf4#
      • 1...gxh4
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINP(b)::QAR2(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(B);
      • Threat
        • QAR1(C),XP(b)
      • Vars
        • K(c);S_FLIGHT::QAR1(C),XP(b)
      • Refutation
        • P(b);XQ(C)
  • Actual
    • B(B);
    • Threat
      • QAR1(C),XP(b)
    • Vars
      • K(c);S_FLIGHT::QAR1(C),XP(b)
      • P(b);XQ(C)::S(A),XP(b)
      • P(b);OGATE,XB(B)::QAR1(C)
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