MESON Chess Problem Database

Problem Display
PID: 243881 (1QbR1Rq1/8/4B3/r1p1n1p1/r2Nk3/3pN3/4P3/2B3K1 w - - 0 1)

Fleck, Ferenc

Magyar Sakkvilag, 1934

1QbR1Rq1/8/4B3/r1p1n1p1/r2Nk3/3pN3/4P3/2B3K1

#2

9 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3+
      • 2.exf3#
  • Tries
    • 1.Sc6?
      • threat
        • 2.Qxe5#
      • 1...Sf3+
        • 2.exf3#
      • 1...Sxc6
        • 2.exd3#
      • 1...Qg7
        • 2.Bd5#
      • 1...Qh8
        • 2.Bd5#
      • 1...Sc4
        • 2.exd3#
      • 1...Sg4
        • 2.exd3#
      • 1...Sg6
        • 2.exd3#
      • 1...Sd7
        • 2.Bf5#
      • 1...Sf7
        • 2.Bd5#
      • 1...c4
        • 2.Rd4#
      • 1...Qxe6!
    • 1.Bd5+?
      • 1...Kxd4
        • 2.Qb2#
      • 1...Qxd5!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qxe5#
      • 1...Sxf3+
        • 2.exf3#
      • 1...Qxe6
        • 2.Sxg5#
      • 1...Qg7
        • 2.Bd5#
      • 1...Qh8
        • 2.Sxg5#
        • 2.Bd5#
      • 1...Sc4
        • 2.exd3#
      • 1...Sg4
        • 2.exd3#
      • 1...Sc6
        • 2.exd3#
      • 1...Sg6
        • 2.Sxg5#
        • 2.exd3#
      • 1...Sd7
        • 2.Bf5#
      • 1...Sf7
        • 2.Bd5#
      • 1...c4
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(f);CHECK,OGATE::P(C),XS(f)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(G),XS(f)
      • Vars
        • S(f);CHECK,OGATE::P(C),XS(f)
        • S(f);N_GUARD,XS(E)::P(C),XP(a)
        • Q(i);N_GUARD::B(F)
        • S(f);N_GUARD::P(C),XP(a)
        • S(f);S_CUTB(h)::B(F)
        • S(f);S_CUTQ(i)::B(F)
        • P(e);N_GUARD,S_CUTR(b)::R1(H)
      • Refutation
        • Q(i);XB(F)
    • Try
      • B(F);CHECK
      • Vars
        • K(c);P-FLIGHT,XS(E)::QAB(G)
      • Refutation
        • Q(i);XB(F)
  • Actual
    • S(E);
    • Threat
      • QAR1(G),XS(f)
    • Vars
      • S(f);CHECK,OGATE,XS(E)::P(C),XS(f)
      • Q(i);N_GUARD,XB(F)::S(E),XP(g)
      • Q(i);N_GUARD::B(F)
      • S(f);N_GUARD::P(C),XP(a)
      • S(f);S_CUTB(h)::B(F)
      • S(f);S_CUTQ(i)::B(F)
      • P(e);N_GUARD,S_CUTR(b)::R1(H)
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