MESON Chess Problem Database

Problem Display
PID: 10791 (8/3p2Q1/4r3/1B3n1N/1KNpk1Pp/3R4/8/3R2n1 w - - 0 1)

Sovik, Stefan

5th Comm., Probleemblad, 1968

8/3p2Q1/4r3/1B3n1N/1KNpk1Pp/3R4/8/3R2n1

#2

8 + 7

17177 Kompozicny Sach na Slovensku (Formanek) 1984
3335 Cyclone 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Qxe5#
    • 1...Ra6
      • 2.Qe5#
    • 1...Rb6
      • 2.Qe5#
    • 1...Rc6
      • 2.Qe5#
    • 1...Rd6
      • 2.Qe5#
    • 1...Rg6
      • 2.Qe5#
    • 1...Rh6
      • 2.Qe5#
    • 1...Sg3
      • 2.Qxd4#
    • 1...Sd6
      • 2.Qxd4#
    • 1...Sh6
      • 2.Qxd4#
    • 1...Se7
      • 2.Qxd4#
    • 1...d5
      • 2.Sd2#
  • Tries
    • 1.Qf7?
      • threat
        • 2.Qxf5#
      • 1...Kd5
        • 2.Sf6#
      • 1...Re5
        • 2.Sd2#
      • 1...Se3
        • 2.Rxd4#
      • 1...Sg3
        • 2.Rxd4#
      • 1...Sd6
        • 2.Rxd4#
      • 1...Sh6
        • 2.Rxd4#
      • 1...Se7
        • 2.Rxd4#
      • 1...Sg7
        • 2.Rxd4#
      • 1...Rf6!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qxf5#
      • 1...Kd5
        • 2.Rxd4#
      • 1...Re5
        • 2.Sf6#
      • 1...Rf6
        • 2.Sxf6#
      • 1...Se3
        • 2.Sd2#
      • 1...Sg3
        • 2.Sd2#
      • 1...Sd6
        • 2.Sd2#
      • 1...Sh6
        • 2.Sd2#
      • 1...Se7
        • 2.Sd2#
      • 1...Sg7
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • R(f);N_GUARD::QAR1(H),XR(f)
    • R(f);N_GUARD::QAR1(H)
    • R(f);N_GUARD,P_PINB(F)::QAR1(H)
    • S(e);N_GUARD::QAR1(H),XP(b)
    • P(g);SBLOCK::S(D)
  • Tries
    • Try
      • Q(H);
      • Threat
        • QAB1(H),XS(e)
      • Vars
        • K(c);P_SPINP(b),P_SPINR(f),S_FLIGHT::S(G)
        • R(f);SBLOCK::S(D)
        • S(e);N_GUARD::R1(B),XP(b)
      • Refutation
        • R(f);
  • Actual
    • Q(H);
    • Threat
      • QAB1(H),XS(e)
    • Vars
      • K(c);P_SPINP(b),P_SPINS(e),S_FLIGHT::R1(B),XP(b)
      • R(f);N_GUARD::S(G)
      • R(f);N_GUARD::S(G),XR(f)
      • S(e);::S(D)
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