MESON Chess Problem Database

Problem Display
PID: 243894 (K1BRr3/2b5/3nn3/p3p2P/2PBk3/1PrN4/q4Q1p/3bN3 w - - 0 1)

Fleck, Ferenc

Magyar Sakkvilag, 1942

K1BRr3/2b5/3nn3/p3p2P/2PBk3/1PrN4/q4Q1p/3bN3

#2

10 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc4
      • 2.Bb7#
    • 1...Sb5
      • 2.Bb7#
    • 1...Sf5
      • 2.Bb7#
    • 1...Sb7
      • 2.Bxb7#
    • 1...Sf7
      • 2.Bb7#
    • 1...Sxd4
      • 2.Sc5#
    • 1...Sf4
      • 2.Sc5#
      • 2.Qe3#
    • 1...Sc5
      • 2.Sxc5#
      • 2.Qe3#
    • 1...Sg5
      • 2.Sc5#
      • 2.Qe3#
    • 1...Sg7
      • 2.Sc5#
      • 2.Qe3#
    • 1...Sxd8
      • 2.Sc5#
      • 2.Qe3#
    • 1...Sf8
      • 2.Sc5#
      • 2.Qe3#
  • Tries
    • 1.Qf5+?
      • 1...Kxd4
        • 2.Qxe5#
      • 1...Sxf5
        • 2.Bb7#
      • 1...Kxf5!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qxe5#
      • 1...Kxd4
        • 2.Qxe5#
      • 1...Kf5
        • 2.Qg6#
      • 1...Sxc4
        • 2.Qg6#
      • 1...Sxc8
        • 2.Qg6#
      • 1...Sxd4
        • 2.Sc5#
      • 1...Sxd8
        • 2.Qe3#
      • 1...exd4
        • 2.Qe5#
      • 1...Sb5
        • 2.Qg6#
      • 1...Sf5
        • 2.Bb7#
      • 1...Sb7
        • 2.Qg6#
      • 1...Sf7
        • 2.Qg6#
      • 1...Sf4
        • 2.Qe3#
      • 1...Sc5
        • 2.Qe3#
      • 1...Sg5
        • 2.Qe3#
      • 1...Sg7
        • 2.Qe3#
      • 1...Sf8
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • S(h);N_GUARD,XP(E)::B(I)
    • S(h);N_GUARD::B(I)
    • S(h);N_GUARD::B(I),XS(h)
    • S(i);N_GUARD,XB(F)::S(D)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINS(h),XB(F)::QAB1(B),XP(g)
        • S(h);SBLOCK,XQ(B)::B(I)
      • Refutation
        • K(e);P_SPINS(i),S_FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B),XP(g)
    • Vars
      • K(e);P-FLIGHT,P_SPINS(h),XB(F)::QAB1(B),XP(g)
      • K(e);P_SPINS(i),S_FLIGHT::QAB1(B)
      • S(h);N_GUARD,XP(E)::QAB(B)
      • S(h);N_GUARD,XB(I)::QAB(B)
      • S(i);N_GUARD,SBLOCK,XB(F)::S(D)
      • S(i);XR(J)::QAR1(B)
      • P(g);XB(F)::QAR1(B)
      • S(h);N_GUARD::QAB(B)
      • S(h);N_GUARD,SBLOCK::B(I)
      • S(i);::QAR1(B)
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