MESON Chess Problem Database

Problem Display
PID: 134787 (1rB5/1Pk5/2N5/4K3/Q7/8/8/8 w - - 0 1)

Podushkin, S

Yaroslavtsev, Arkady Ivanovich

4th HM.=, Prapor peremogi, 1969

1rB5/1Pk5/2N5/4K3/Q7/8/8/8

#2

5 + 2

133 The Problemist Supplement 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qa7?
      • 1...Rxb7
        • 2.Qxb7#
      • 1...Rxc8
        • 2.b8S#
      • 1...Ra8
        • 2.bxa8Q#
      • 1...Kxc6!
  • Keys
    • 1.Qa6!
      • 1...Rxb7
        • 2.Qxb7#
      • 1...Rxc8
        • 2.bxc8Q#
      • 1...Ra8
        • 2.bxa8S#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • R(b);OGATE,P_SPINR(b),XP(D)::QAR1(A),XR(b)
        • R(b);OGATE,SBLOCK,XB(E)::P=S
        • R(b);OGATE::PXR(b)=Q
      • Refutation
        • K(a);P-FLIGHT,XS(C)
  • Actual
    • Q(A);
    • Vars
      • R(b);OGATE,XP(D)::QAR1(A),XR(b)
      • R(b);OGATE,XB(E)::PXR(b)=Q
      • R(b);OGATE::PXR(b)=S
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