MESON Chess Problem Database

Problem Display
PID: 24485 (Q4B2/1R1N1p2/2n3r1/1N1knp2/1P1pRKp1/1p1p4/2r1p3/8 w - - 0 1)

Sovik, Stefan

1st Prize, Narodna obroda, 1993

Q4B2/1R1N1p2/2n3r1/1N1knp2/1P1pRKp1/1p1p4/2r1p3/8

#2

8 + 12

3681 FIDE Album (1992-1994) 2001
5459 Sachmatija 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Sc7#
    • 1...Re6
      • 2.Sb6#
    • 1...Sf3
      • 2.Sb6#
    • 1...Sc4
      • 2.Sc7#
  • Tries
    • 1.Rxd4+?
      • 1...Ke6
        • 2.Sc7#
        • 2.Rd6#
      • 1...Sxd4!
    • 1.Rxe5+?
      • 1...Kc4
        • 2.Sb6#
      • 1...Sxe5!
    • 1.Qc8?
      • threat
        • 2.Sb6#
      • 1...Kc4
        • 2.Rxd4#
      • 1...Ke6
        • 2.Sc7#
      • 1...Sxb4
        • 2.Rxe5#
      • 1...Sc4
        • 2.Sc7#
      • 1...Sa5
        • 2.Rxe5#
      • 1...Sa7
        • 2.Rxe5#
      • 1...Se7
        • 2.Rxe5#
      • 1...Sb8
        • 2.Rxe5#
      • 1...Sd8
        • 2.Rxe5#
      • 1...Sxd7!
  • Keys
    • 1.Qa6!
      • threat
        • 2.Sc7#
      • 1...Kc4
        • 2.Sb6#
      • 1...Ke6
        • 2.Rxe5#
      • 1...Sxb4
        • 2.Rxd4#
      • 1...Sa5
        • 2.Rxd4#
      • 1...Sa7
        • 2.Rxd4#
      • 1...Se7
        • 2.Rxd4#
      • 1...Sb8
        • 2.Rxd4#
      • 1...Sd8
        • 2.Rxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 4
  • Sets
    • R(a);SBLOCK::S(D)
    • R(k);SBLOCK::S(F)
    • S(h);::S(F)
    • S(h);SBLOCK::S(D)
  • Tries
    • Try
      • R(B);CHECK,XP(e)
      • Refutation
        • S(j);XR(B)
    • Try
      • R(B);CHECK,XS(h)
      • Vars
        • K(g);S_FLIGHT::S(F)
      • Refutation
        • S(j);XR(B)
    • Try
      • Q(G);
      • Threat
        • S(F)
      • Vars
        • K(g);P_SPINP(e),P_SPINS(j),S_FLIGHT::R1(B),XP(e)
        • K(g);P_SPINS(h),S_FLIGHT::S(D)
        • S(j);N_GUARD,XP(A)::R1(B),XS(h)
        • S(h);SBLOCK::S(D)
        • S(j);N_GUARD::R1(B),XS(h)
      • Refutation
        • S(h);XS(F)
  • Actual
    • Q(G);
    • Threat
      • S(D)
    • Vars
      • K(g);P_SPINP(e),S_FLIGHT::S(F)
      • K(g);P_SPINS(h),S_FLIGHT::R1(B),XS(h)
      • S(j);N_GUARD,XP(A)::R1(B),XP(e)
      • S(j);N_GUARD::R1(B),XP(e)
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