MESON Chess Problem Database

Problem Display
PID: 240661 (6B1/7b/5p1r/8/5pQB/p5p1/8/k1K4R w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Thema Danicum, 1984

6B1/7b/5p1r/8/5pQB/p5p1/8/k1K4R

#2

5 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg6
      • 2.Kc2#
    • 1...Bc2
      • 2.Kxc2#
    • 1...Bg6
      • 2.Bxf6#
    • 1...f3
      • 2.Qd4#
    • 1...f5
      • 2.Kc2#
  • Tries
    • 1.Qe6?
      • threat
        • 2.Qa2#
      • 1...Bxg8
        • 2.Kc2#
      • 1...a2
        • 2.Qxa2#
      • 1...Bb1!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Kc2#
        • 2.Bxf6#
      • 1...Rxh4
        • 2.Qxf6#
      • 1...Rxg6
        • 2.Kc2#
      • 1...Bxg6
        • 2.Bxf6#
      • 1...Bxg8
        • 2.Qb1#
      • 1...Rh5
        • 2.Kc2#
      • 1...g2
        • 2.Bxf6#
      • 1...f5
        • 2.Kc2#
        • 2.Bf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(f);::R(B)+K(A)
    • B(g);::R(B)+K(A),XB(g)
    • B(g);S_CUTR(f)::B(D),XP(e)
    • P(d);OGATE::QAB(C)
    • P(e);::R(B)+K(A)
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • B(g);XB(E)::R(B)+K(A)
        • P(b);::QAR1(C),XP(b)
      • Refutation
        • B(g);
  • Actual
    • Q(C);
    • Threat
      • DUALS(2)
    • Vars
      • R(f);N_GUARD,XB(D)::QAB(C),XP(e)
      • R(f);XQ(C)::R(B)+K(A)
      • B(g);XQ(C)::B(D),XP(e)
      • B(g);N_GUARD,XB(E)::QAR1(C)
      • R(f);::R(B)+K(A)
      • P(c);::B(D),XP(e)
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