MESON Chess Problem Database

Problem Display
PID: 70919 (8/3Q2n1/3PrP1K/4PkB1/2N5/4RP1p/3Pr3/4b3 w - - 0 1)

Janevski, Zivko

Probleemblad, 2006

8/3Q2n1/3PrP1K/4PkB1/2N5/4RP1p/3Pr3/4b3

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sh5
      • 2.Qh7#
    • 1...Se8
      • 2.Qh7#
  • Tries
    • 1.Qb5?
      • threat
        • 2.Qb1#
      • 1...Rxf6+
        • 2.exf6#
      • 1...Rxe3
        • 2.Sxe3#
      • 1...Rxe5
        • 2.Qxe5#
      • 1...Rxd6
        • 2.exd6#
      • 1...Re7
        • 2.e6#
      • 1...Re8
        • 2.e6#
      • 1...Rxd2!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qg6#
      • 1...Rxf6+
        • 2.Qxf6#
      • 1...Rxe5
        • 2.fxg7#
      • 1...Rxd6
        • 2.Sxd6#
      • 1...Re7
        • 2.fxe7#
      • 1...Re8
        • 2.fxg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • S(f);OGATE::QAB(J)
  • Tries
    • Try
      • Q(J);N_PINR(e)
      • Threat
        • QAB(J)
      • Vars
        • R(e);CHECK,OGATE,XP(H)::QAR(J)+P(E),XR(e)
        • R(b);XR(B)::S(D),XR(b)
        • R(e);N_PINP(H),OGATE,P_SPINR(e),XP(E)::QAR1(J),XR(e)
        • R(e);OGATE,XP(G)::QAR(J)+P(E),XR(e)
        • R(e);N_PINP(H),OGATE::QAR(J)+P(E)
      • Refutation
        • R(b);XP(A)
  • Actual
    • Q(J);N_PINR(e)
    • Threat
      • QAB1(J)
    • Vars
      • R(e);CHECK,OGATE,P_SPINR(e),XP(H)::QAR1(J),XR(e)
      • R(e);N_PINP(H),XP(E)::QAR(J)+P(H),XS(f)
      • R(e);XP(G)::S(D),XR(e)
      • R(e);N_PINP(H)::QAR(J)+P(H),XR(e)
      • R(e);N_PINP(H)::QAR(J)+P(H),XS(f)
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