MESON Chess Problem Database

Problem Display
PID: 233937 (5K2/8/5kp1/Q7/5N2/4N2B/p3b3/q3R3 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Skakbladet, 1944

5K2/8/5kp1/Q7/5N2/4N2B/p3b3/q3R3

#2

6 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bf1
      • 2.Sg4#
    • 1...Bd3
      • 2.Sg4#
    • 1...Bc4
      • 2.Sg4#
    • 1...Bg4
      • 2.Sxg4#
    • 1...Ba6
      • 2.Sg4#
    • 1...g5
      • 2.Qf5#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Qd8#
      • 1...Bxd3
        • 2.Sg4#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Bg4
        • 2.Sxg4#
      • 1...g5
        • 2.Qb6#
        • 2.Qf5#
        • 2.Qa6#
      • 1...Qd4!
    • 1.Sh5+?
      • 1...gxh5
        • 2.Qf5#
      • 1...Bxh5!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qg5#
      • 1...Bg4
        • 2.Sxg4#
      • 1...Bb5
        • 2.Sd5#
      • 1...g5
        • 2.Qf5#
        • 2.Qxg5#
      • 1...Qe5
        • 2.Qd8#

This is a version of 233934

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • B(c);N_GUARD::S(B)
    • B(c);N_GUARD::S(B),XB(c)
    • P(e);N_GUARD::QAR1(E)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAB(E)
      • Vars
        • B(c);N_GUARD,XS(D)::S(B)
        • Q(a);N_GUARD::QAB1(E),XQ(a)
        • B(c);N_GUARD::S(B),XB(c)
      • Refutation
        • Q(a);
    • Try
      • S(D);CHECK
      • Vars
        • P(e);XS(D)::QAR1(E)
      • Refutation
        • B(c);XS(D)
  • Actual
    • S(D);
    • Threat
      • QAB1(E)
    • Vars
      • B(c);N_GUARD::S(B),XB(c)
      • B(c);::S(B)
      • Q(a);SBLOCK::QAB(E)
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