MESON Chess Problem Database

Problem Display
PID: 37433 (4N3/3nPp1B/1pPBkb1Q/1K4p1/1PPp2r1/3P1N2/8/8 w - - 0 1)

Madsen, Arthur Valdemar

2nd Prize, Skakbladet, 1952

4N3/3nPp1B/1pPBkb1Q/1K4p1/1PPp2r1/3P1N2/8/8

#2

11 + 8

3105 FIDE Album (1945-1955) 1964

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Sxd4#
    • 1...Rg2
      • 2.Sxd4#
    • 1...Rg3
      • 2.Sxd4#
    • 1...Re4
      • 2.Sxg5#
    • 1...Rf4
      • 2.Sxg5#
    • 1...Rh4
      • 2.Sxg5#
    • 1...Sc5
      • 2.Qxf6#
    • 1...Se5
      • 2.Qxf6#
    • 1...Sb8
      • 2.Qxf6#
    • 1...Sf8
      • 2.Qxf6#
      • 2.exf8S#
  • Tries
    • 1.Bc5?
      • threat
        • 2.Sc7#
        • 2.Sg7#
      • 1...Sxc5
        • 2.Qxf6#
      • 1...bxc5!
    • 1.Qg6?
      • threat
        • 2.Qf5#
      • 1...Rf4
        • 2.Sxg5#
      • 1...fxg6!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Qxg4#
      • 1...Bxe7
        • 2.Sxd4#
      • 1...Be5
        • 2.Sxg5#
      • 1...Bg7
        • 2.Sxg5#
      • 1...Bh8
        • 2.Sxg5#
      • 1...Se5
        • 2.Sxd4#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • R(b);N_GUARD::S(B),XP(a)
    • R(b);N_GUARD::S(B),XP(c)
    • S(g);N_GUARD::QAR1(H),XB(f)
  • Tries
    • Try
      • B(G);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);N_GUARD,XB(G)::QAR1(H),XB(f)
      • Refutation
        • P(d);XB(G)
    • Try
      • Q(H);
      • Threat
        • QAB1(H)
      • Vars
        • R(b);N_GUARD::S(B),XP(c)
      • Refutation
        • P(h);N_SPINB(f),XQ(H)
  • Actual
    • Q(H);N_PINB(f),P_PINR(b)
    • Threat
      • QAB(H),XR(b)
    • Vars
      • B(f);N_GUARD,XP(I)::S(B),XP(a)
      • B(f);N_GUARD::S(B),XP(c)
      • S(g);S_CUTB(f)::S(B),XP(a)
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