MESON Chess Problem Database

Problem Display
PID: 41976 (8/5B2/1ppR4/npk5/1r3NK1/B7/5b2/3R4 w - - 0 1)

Hannemann, Knud Harald

Nationaltidende, 1921

8/5B2/1ppR4/npk5/1r3NK1/B7/5b2/3R4

#2

6 + 7

3360 Simple Two-move Themes 1924
14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.Se6#
  • Tries
    • 1.R1d4?
      • threat
        • 2.Sd3#
        • 2.Se6#
        • 2.Bxb4#
      • 1...Be1
        • 2.Sd3#
        • 2.Se6#
      • 1...Sc4
        • 2.Sd3#
        • 2.Se6#
      • 1...Bxd4!
    • 1.R6d4?
      • threat
        • 2.Se6#
        • 2.Bxb4#
      • 1...Be1
        • 2.Se6#
      • 1...Sc4
        • 2.Se6#
      • 1...Bxd4!
    • 1.Rg6?
      • threat
        • 2.Rg5#
      • 1...Bd4
        • 2.Sd3#
      • 1...Sc4
        • 2.Se6#
      • 1...Bh4!
    • 1.Rh6?
      • threat
        • 2.Rh5#
      • 1...Bd4
        • 2.Sd3#
      • 1...Sc4
        • 2.Se6#
      • 1...Bh4!
  • Keys
    • 1.Rf6!
      • threat
        • 2.Rf5#
      • 1...Bd4
        • 2.Sd3#
      • 1...Sc4
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(c);N_PINS(C),SBLOCK::S(C)
  • Tries
    • Try
      • R(A);N_SPINS(C)
      • Threat
        • DUALS(3)
      • Refutation
        • B(a);XR(A)
    • Try
      • R(E);N_SPINS(C)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::S(C)
        • S(c);::S(C)
      • Refutation
        • B(a);XR(E)
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • B(a);N_PINS(C),SBLOCK::S(C)
        • S(c);N_PINS(C),SBLOCK::S(C)
      • Refutation
        • B(a);
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • B(a);N_PINS(C),SBLOCK::S(C)
        • S(c);N_PINS(C),SBLOCK::S(C)
      • Refutation
        • B(a);
  • Actual
    • R(E);
    • Threat
      • R(E)
    • Vars
      • B(a);N_PINS(C),SBLOCK::S(C)
      • S(c);N_PINS(C),SBLOCK::S(C)
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