MESON Chess Problem Database

Problem Display
PID: 146452 (3B4/K3p2q/1R2p2b/1Nk1rQn1/R1B5/3prb2/1N6/8 w - - 0 1)

Szoghy, Jozsef

Magyar Sakkvilag, 1932

3B4/K3p2q/1R2p2b/1Nk1rQn1/R1B5/3prb2/1N6/8

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf5
      • 2.Bxe7#
    • 1...Qg6
      • 2.Bxe7#
    • 1...Qg8
      • 2.Bxe7#
    • 1...Qh8
      • 2.Bxe7#
    • 1...Re1
      • 2.Sxd3#
    • 1...Re2
      • 2.Sxd3#
    • 1...Re4
      • 2.Sxd3#
    • 1...Bg7
      • 2.Bxe7#
    • 1...Se4
      • 2.Qxe5#
  • Tries
    • 1.Rc6+?
      • 1...Bxc6
        • 2.Bb6#
      • 1...Kxc6!
    • 1.Qxe5+?
      • 1...Bd5
        • 2.Qd4#
        • 2.Qxe3#
      • 1...Rxe5!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qd4#
      • 1...Qe4
        • 2.Bxe7#
      • 1...R3e4
        • 2.Sxd3#
      • 1...R5e4
        • 2.Qc7#
      • 1...Rd5
        • 2.Qc7#
      • 1...Be4
        • 2.Qxe3#
      • 1...Se4
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • Q(j);N_GUARD,N_SPINR(e),XQ(E)::B(H),XP(i)
    • Q(j);N_GUARD::B(H),XP(i)
    • R(b);N_GUARD::S(A),XP(a)
    • B(h);S_CUTQ(j)::B(H),XP(i)
    • S(f);S_CUTB(c),S_CUTR(b)::QAR2(E),XR(e)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • B(c);SBLOCK,XR(F)::B(H)
      • Refutation
        • K(d);N_SPINR(e),P-FLIGHT,XR(F)
    • Try
      • Q(E);CHECK,XR(e)
      • Refutation
        • R(b);XQ(E)
  • Actual
    • Q(E);N_PINR(e)
    • Threat
      • QAB1(E)
    • Vars
      • Q(j);N_GUARD::B(H),XP(i)
      • R(b);N_GUARD,S_CUTQ(j)::S(A),XP(a)
      • R(e);OGATE::QAR2(E)
      • B(c);S_CUTR(e)::QAB(E),XR(b)
      • S(f);S_CUTB(c),S_CUTR(b)::QAR2(E),XR(e)
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