MESON Chess Problem Database

Problem Display
PID: 40835 (1N1n4/B2P3B/1p4R1/2kp4/RpPr4/P7/1n1P2p1/Nrq1QbK1 w - - 0 1)

Skogsenden, Karl

3rd Prize, Nynorsk Vekeblad, 1952

1N1n4/B2P3B/1p4R1/2kp4/RpPr4/P7/1n1P2p1/Nrq1QbK1

#2

12 + 11

3105 FIDE Album (1945-1955) 1964
133 The Problemist Supplement 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Rxc6#
    • 1...Sb7
      • 2.Rc6#
    • 1...Sf7
      • 2.Rc6#
    • 1...bxa3
      • 2.Sb3#
      • 2.Sa6#
      • 2.Bxb6#
      • 2.Qe7#
    • 1...b3
      • 2.Sxb3#
      • 2.Sa6#
      • 2.Bxb6#
      • 2.Qe7#
    • 1...dxc4
      • 2.Ra5#
  • Keys
    • 1.Rxb6!
      • threat
        • 2.Rc6#
      • 1...Kxc4
        • 2.Rbxb4#
      • 1...Qxc4
        • 2.Qe7#
      • 1...Rxc4
        • 2.Sb3#
      • 1...Bxc4
        • 2.axb4#
      • 1...Sxc4
        • 2.Sa6#
      • 1...dxc4
        • 2.Ra5#
      • 1...Sc6
        • 2.Rxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • S(k);N_GUARD::R1(H),XS(k)
    • S(k);N_GUARD::R1(H)
    • P(i);SBLOCK,XP(G)::R(F)
  • Actual
    • R(H);XP(j)
    • Threat
      • B(I)+R(H),DCHECK
    • Vars
      • K(h);P-FLIGHT,P_SPINP(f),XP(G)::R1(H),XP(f)
      • Q(b);SBLOCK,XP(G)::QAB(B)
      • R(g);SBLOCK,XP(G)::S(A)
      • B(c);P_PINQ(B),SBLOCK,XP(G)::P(E),XP(f)
      • S(d);SBLOCK,XP(G)::S(L)
      • P(i);SBLOCK,XP(G)::R(F)
      • S(k);::B(I)+R(H),DCHECK,XS(k)
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