MESON Chess Problem Database

Problem Display
PID: 6119 (6k1/r7/1b3QK1/3N4/8/8/8/8 w - - 0 1)

Hoeg, Nils

Deutsche Schachblatter, 1927

6k1/r7/1b3QK1/3N4/8/8/8/8

#2

3 + 3

427 Eskilstuna Kuriren 1937
785 Het Belgisch Schaakbord (L'Echiquier Belge) 1952
15532 Hoegs skakproblemer 1982
3310 2345 Chess Problems 1997
3713 Snap 2001
4883 Still More Fun with Chess Miniatures 2002
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Se7#
      • 2.Qg7#
    • 1...Ra2
      • 2.Se7#
      • 2.Qg7#
    • 1...Ra3
      • 2.Se7#
      • 2.Qg7#
    • 1...Ra4
      • 2.Se7#
      • 2.Qg7#
    • 1...Ra5
      • 2.Se7#
      • 2.Qg7#
    • 1...Ra6
      • 2.Se7#
      • 2.Qg7#
    • 1...Rc7
      • 2.Qd8#
    • 1...Re7
      • 2.Sxe7#
    • 1...Rg7+
      • 2.Qxg7#
    • 1...Ra8
      • 2.Se7#
      • 2.Qg7#
    • 1...Bg1
      • 2.Qd8#
    • 1...Bf2
      • 2.Qd8#
    • 1...Be3
      • 2.Qd8#
    • 1...Bd4
      • 2.Qd8#
    • 1...Bc7
      • 2.Se7#
      • 2.Qg7#
    • 1...Bd8
      • 2.Qxd8#
  • Tries
    • 1.Qf7+?
      • 1...Kh8
        • 2.Qe8#
        • 2.Qf8#
      • 1...Rxf7!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Qg7#
        • 2.Qd8#
      • 1...Rxc7
        • 2.Qd8#
      • 1...Bxc7
        • 2.Qg7#
      • 1...Ra8
        • 2.Qg7#
      • 1...Bd4
        • 2.Qd8#
      • 1...Bc5
        • 2.Qg7#

This anticipates 6763(1933), 234504(1959), 234505(1959)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(b);S_CUTB(a)::QAR(B)
    • R(b);N_GUARD::S(A),XR(b)
    • R(b);CHECK,N_GUARD::QAR1(B),XR(b)
    • B(a);N_GUARD::QAR(B)
    • B(a);N_GUARD::QAR(B),XB(a)
  • Tries
    • Try
      • Q(B);CHECK
      • Refutation
        • R(b);XQ(B)
  • Actual
    • S(A);
    • Threat
      • DUALS(2)
    • Vars
      • R(b);XS(A)::QAR(B)
      • B(a);XS(A)::QAR1(B)
      • R(b);::QAR1(B)
      • B(a);::QAR(B)
      • B(a);::QAR1(B)
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