MESON Chess Problem Database

Problem Display
PID: 79840 (8/8/7K/8/5p1k/5R2/6P1/5Qb1 w - - 0 1)

Akerblom, Johan Axel

Sodra Delarnes Tidning, 1927

8/8/7K/8/5p1k/5R2/6P1/5Qb1

#2

4 + 3

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Qb5?
      • threat
        • 2.Qg5#
        • 2.Qh5#
      • 1...Kg4
        • 2.Qg5#
        • 2.Qh5#
      • 1...Bc5!
    • 1.Qf2+?
      • 1...Kg4
        • 2.Rxf4#
      • 1...Bxf2!
    • 1.g3+?
      • 1...fxg3
        • 2.Rf4#
      • 1...Kg4!
  • Keys
    • 1.g4!
      • threat
        • 2.Qh3#
      • 1...Kxg4
        • 2.Qh3#
      • 1...fxg4 ep
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • B(a);
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);P-FLIGHT::R1(C),XP(b)
      • Refutation
        • B(a);XQ(A)
    • Try
      • P(B);CHECK
      • Vars
        • P(b);SBLOCK,XP(B)::R(C)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • P(B);
    • Threat
      • QAR1(A)
    • Vars
      • K(c);P-FLIGHT,XP(B)::QAB1(A)
      • P(b);EP,OGATEB,XP(B)::R(C)
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