MESON Chess Problem Database

Problem Display
PID: 243296 (3b4/1p6/4N1K1/B1Ppk1N1/5p1R/2P2PPn/8/8 w - - 0 1)

Andersen, Idon Bruno Hovedskou

Skakbladet, 1952

3b4/1p6/4N1K1/B1Ppk1N1/5p1R/2P2PPn/8/8

#2

9 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bf6
      • 2.Bc7#
    • 1...Bc7
      • 2.Bxc7#
    • 1...Sg1
      • 2.gxf4#
    • 1...Sf2
      • 2.gxf4#
  • Tries
    • 1.Sxf4?
      • threat
        • 2.Sd3#
        • 2.Sf7#
      • 1...Sxf4+
        • 2.gxf4#
      • 1...Bxg5
        • 2.Bc7#
      • 1...Sf2
        • 2.Sf7#
      • 1...d4
        • 2.Sf7#
      • 1...Sxg5!
    • 1.Sc7?
      • threat
        • 2.Sf7#
      • 1...Bxc7
        • 2.Bxc7#
      • 1...Sxg5
        • 2.gxf4#
      • 1...Bxg5!
    • 1.Sg7?
      • threat
        • 2.Sf7#
      • 1...Bxg5
        • 2.Bc7#
      • 1...Sxg5
        • 2.gxf4#
      • 1...d4!
    • 1.Sxd8?
      • threat
        • 2.Sgf7#
        • 2.Sdf7#
        • 2.Bc7#
      • 1...Sxg5
        • 2.Bc7#
        • 2.gxf4#
      • 1...b6
        • 2.Sgf7#
        • 2.Sc6#
        • 2.Sdf7#
      • 1...d4!
    • 1.Sf8?
      • threat
        • 2.Sf7#
        • 2.Sd7#
      • 1...Bxg5
        • 2.Bc7#
      • 1...Sxg5
        • 2.gxf4#
      • 1...d4!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sf7#
      • 1...Bxg5
        • 2.Bc7#
      • 1...Sxg5
        • 2.gxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(f);N_GUARD::B(E)
    • B(f);N_GUARD::B(E),XB(f)
    • S(a);N_GUARD::P(C),XP(b)
  • Tries
    • Try
      • S(H);XP(b)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);CHECK,OGATE,XS(H)::P(C),XS(a)
        • B(f);N_GUARD,XS(G)::B(E)
        • S(a);::S(G)
        • P(c);::S(G)
      • Refutation
        • S(a);XS(G)
    • Try
      • S(H);
      • Threat
        • S(G)
      • Vars
        • B(f);OGATE,XS(H)::B(E),XB(f)
        • S(a);N_GUARD,XS(G)::P(C),XP(b)
      • Refutation
        • B(f);XS(G)
    • Try
      • S(H);
      • Threat
        • S(G)
      • Vars
        • B(f);N_GUARD,XS(G)::B(E)
        • S(a);N_GUARD,XS(G)::P(C),XP(b)
      • Refutation
        • P(c);
    • Try
      • S(H);XB(f)
      • Threat
        • DUALS(3)
      • Refutation
        • P(c);
    • Try
      • S(H);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);N_GUARD,XS(G)::B(E)
        • S(a);N_GUARD,XS(G)::P(C),XP(b)
      • Refutation
        • P(c);
  • Actual
    • S(H);
    • Threat
      • S(G)
    • Vars
      • B(f);N_GUARD,XS(G)::B(E)
      • S(a);N_GUARD,XS(G)::P(C),XP(b)
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