MESON Chess Problem Database

Problem Display
PID: 51352 (6n1/K1B1R2N/p3N1p1/r2kpbQr/2Rp1p2/1PP2n2/5PB1/2b5 w - - 0 1)

Marysko, Milos

Manchester Guardian, 1958

6n1/K1B1R2N/p3N1p1/r2kpbQr/2Rp1p2/1PP2n2/5PB1/2b5

#2

11 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Bh3
      • 2.Bxf3#
    • 1...Bxe6
      • 2.Bxf3#
    • 1...Sf6
      • 2.Sxf6#
    • 1...Sh6
      • 2.Sf6#
  • Tries
    • 1.Sxd4?
      • threat
        • 2.Rxe5#
      • 1...Sxe7
        • 2.Sf6#
      • 1...exd4
        • 2.Bxf3#
        • 2.Re5#
      • 1...Be4
        • 2.Rd7#
      • 1...Be6
        • 2.Bxf3#
      • 1...e4
        • 2.Rd7#
      • 1...Ke4!
    • 1.Sxf4+?
      • 1...Ke4
        • 2.Rxd4#
      • 1...exf4
        • 2.Bxf3#
        • 2.Re5#
      • 1...Bxf4!
    • 1.Sg7?
      • threat
        • 2.Rxe5#
      • 1...Ke4
        • 2.Rxd4#
      • 1...Sxe7
        • 2.Sf6#
      • 1...Be4
        • 2.Rd7#
      • 1...Be6
        • 2.Bxf3#
      • 1...e4
        • 2.Rd7#
      • 1...Rc5!
    • 1.Sef8?
      • threat
        • 2.Rxe5#
      • 1...Ke4
        • 2.Rxd4#
      • 1...Sxe7
        • 2.Sf6#
      • 1...Be4
        • 2.Rd7#
      • 1...Be6
        • 2.Bxf3#
      • 1...e4
        • 2.Rd7#
      • 1...Rc5!
    • 1.Rxd4+?
      • 1...exd4
        • 2.Bxf3#
      • 1...Kc6!
    • 1.Rd7+?
      • 1...Kxe6
        • 2.Sf8#
      • 1...Ke4!
  • Keys
    • 1.Sd8!
      • threat
        • 2.Rxe5#
      • 1...Ke4
        • 2.Rxd4#
      • 1...Sxe7
        • 2.Sf6#
      • 1...Be4
        • 2.Rd7#
      • 1...Be6
        • 2.Bxf3#
      • 1...e4
        • 2.Rd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(h);N_GUARD,P_SPINP(g)::B(B),XS(b)
    • B(h);N_GUARD,P_SPINP(g),XS(G)::B(B),XS(b)
    • S(l);N_GUARD::S(K),XS(l)
    • S(l);N_GUARD::S(K)
  • Tries
    • Try
      • S(G);XP(c)
      • Threat
        • R1(J),XP(g)
      • Vars
        • S(l);N_GUARD,XR(J)::S(K)
        • B(h);N_GUARD,N_SPINS(b),P_SPINP(g),SBLOCK::R(J)
        • B(h);N_GUARD,P_SPINP(g)::B(B),XS(b)
        • P(g);N_SPINS(b),P_SPINB(h),SBLOCK::R(J)
      • Refutation
        • K(f);P_SPINP(g),S_FLIGHT
    • Try
      • S(G);CHECK,XP(d)
      • Vars
        • K(f);P_SPINP(c),S_FLIGHT::R1(E),XP(c)
      • Refutation
        • B(a);XS(G)
    • Try
      • S(G);
      • Threat
        • R1(J),XP(g)
      • Vars
        • K(f);P_SPINP(c),S_FLIGHT::R1(E),XP(c)
        • S(l);N_GUARD,XR(J)::S(K)
        • B(h);N_GUARD,N_SPINS(b),P_SPINP(g),SBLOCK::R(J)
        • B(h);N_GUARD,P_SPINP(g)::B(B),XS(b)
        • P(g);N_SPINS(b),P_SPINB(h),SBLOCK::R(J)
      • Refutation
        • R(e);
    • Try
      • S(G);
      • Threat
        • R1(J),XP(g)
      • Vars
        • K(f);P_SPINP(c),S_FLIGHT::R1(E),XP(c)
        • S(l);N_GUARD,XR(J)::S(K)
        • B(h);N_GUARD,N_SPINS(b),P_SPINP(g),SBLOCK::R(J)
        • B(h);N_GUARD,P_SPINP(g)::B(B),XS(b)
        • P(g);N_SPINS(b),P_SPINB(h),SBLOCK::R(J)
      • Refutation
        • R(e);
    • Try
      • R(E);CHECK,XP(c)
      • Vars
        • P(g);P_SPINB(h),XR(E)::B(B),XS(b)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • R(J);CHECK
      • Vars
        • K(f);N_SPINS(b),S_FLIGHT,XS(G)::S(K)
      • Refutation
        • K(f);P_SPINP(c),S_FLIGHT
  • Actual
    • S(G);
    • Threat
      • R1(J),XP(g)
    • Vars
      • K(f);P_SPINP(c),S_FLIGHT::R1(E),XP(c)
      • S(l);N_GUARD,XR(J)::S(K)
      • B(h);N_GUARD,N_SPINS(b),P_SPINP(g),SBLOCK::R(J)
      • B(h);N_GUARD,P_SPINP(g)::B(B),XS(b)
      • P(g);N_SPINS(b),P_SPINB(h),SBLOCK::R(J)
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