MESON Chess Problem Database

Problem Display
PID: 196719 (3K4/4N3/3pp3/Q2nk1p1/4p1p1/2R3P1/8/8 w - - 0 1)

Grabowski, Kazimierz

Tidskrift for Schack, 1919

3K4/4N3/3pp3/Q2nk1p1/4p1p1/2R3P1/8/8

#2

5 + 7

5454 Near Snap 2019
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Sc6#
  • Keys
    • 1.Qa1!
      • threat
        • 2.Rc5#
      • 1...Kd4
        • 2.Sc6#
      • 1...Kf6
        • 2.Rf3#
      • 1...Sxc3
        • 2.Qxc3#
      • 1...e3
        • 2.Rxe3#

Anticipated by 184750(1908)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINS(c),S_FLIGHT::S(D)
  • Actual
    • Q(C);N_PINS(c)
    • Threat
      • QAB(C)+R(A)
    • Vars
      • K(d);S_FLIGHT::S(D)
      • K(d);S_FLIGHT::QAB(C)+R(A),DCHECK
      • S(c);OGATE,P_SPINS(c),XR(A)::QAB(C),XS(c)
      • P(a);::QAB(C)+R(A),DCHECK,XP(a)
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