MESON Chess Problem Database

Problem Display
PID: 159424 (3Q4/p2N4/k7/4b2K/8/1R2B2p/2r1p2q/4R3 w - - 0 1)

Hoeg, Nils

Eskilstuna Kuriren, 1922

(First published on Fri Jan 6 1922)

3Q4/p2N4/k7/4b2K/8/1R2B2p/2r1p2q/4R3

#2

6 + 7

15532 Hoegs skakproblemer 1982

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Sc5#
    • 1...Rb2
      • 2.Sc5#
    • 1...Rd2
      • 2.Sc5#
    • 1...Rc3
      • 2.Ra1#
    • 1...Rc5
      • 2.Sxc5#
    • 1...Bc3
      • 2.Sc5#
  • Tries
    • 1.Ra1+?
      • 1...Ra2
        • 2.Sc5#
        • 2.Rxa2#
      • 1...Bxa1!
    • 1.Rb6+?
      • 1...axb6
        • 2.Qxb6#
      • 1...Ka5!
  • Keys
    • 1.Bd2!
      • threat
        • 2.Qa5#
      • 1...Rxd2
        • 2.Sc5#
      • 1...Ra2
        • 2.Sc5#
        • 2.Qc8#
      • 1...Rc3
        • 2.Ra1#
      • 1...Rc5
        • 2.Sxc5#
      • 1...Rc7
        • 2.Sb8#
      • 1...Bc3
        • 2.Sc5#
      • 1...Bc7
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(a);N_GUARD::S(E)
    • R(a);N_GUARD,S_CUTB(e)::R(A)
    • R(a);N_GUARD::S(E),XR(a)
    • B(e);S_CUTR(a)::S(E)
  • Tries
    • Try
      • R(A);CHECK
      • Refutation
        • B(e);XR(A)
    • Try
      • R(B);CHECK
      • Vars
        • P(g);OGATE,XR(B)::QAR1(F),XP(g)
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • B(C);
    • Threat
      • QAR1(F)
    • Vars
      • R(a);N_GUARD,XB(C)::S(E)
      • R(a);N_GUARD,S_CUTB(e)::R(A)
      • R(a);N_GUARD::S(E),XR(a)
      • R(a);S_CUTB(e)::S(E)
      • B(e);S_CUTR(a)::S(E)
      • B(e);S_CUTR(a)::QAB(F)
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