MESON Chess Problem Database

Problem Display
PID: 239745 (1K3Q2/6Bb/1p3N2/pp1P3r/r2k1P2/R1npn3/2PNPPq1/8 w - - 0 1)

Szoghy, Jozsef

Schach, 1983

1K3Q2/6Bb/1p3N2/pp1P3r/r2k1P2/R1npn3/2PNPPq1/8

#2

11 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Sb3#
    • 1...Se4
      • 2.Rxd3#
    • 1...Sc4
      • 2.Sb3#
  • Tries
    • 1.Qc8?
      • threat
        • 2.Sb3#
        • 2.Qxc3#
      • 1...Qxd5
        • 2.Qxc3#
      • 1...Sxe2
        • 2.Sb3#
      • 1...Scxd5
        • 2.Sb3#
      • 1...Sexd5
        • 2.Sb3#
      • 1...Rb4
        • 2.Qxc3#
      • 1...Rc4
        • 2.Sb3#
      • 1...Sb1
        • 2.Sb3#
      • 1...Scd1
        • 2.Sb3#
      • 1...Sa2
        • 2.Sb3#
      • 1...Se4
        • 2.Sb3#
        • 2.Rxd3#
      • 1...Sed1
        • 2.Sb3#
      • 1...Sc4
        • 2.Sb3#
      • 1...b4
        • 2.Sb3#
      • 1...Rxa3!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qxb6#
      • 1...Qxd5
        • 2.Sxh5#
      • 1...Rxd5
        • 2.Sg4#
      • 1...Scxd5
        • 2.c3#
      • 1...Sexd5
        • 2.e3#
      • 1...Rc4
        • 2.Sb3#
      • 1...Se4
        • 2.Rxd3#
      • 1...Sc4
        • 2.Sb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(e);SBLOCK::S(B)
    • S(b);OGATE::R1(E),XP(c)
    • S(d);SBLOCK::S(B)
  • Tries
    • Try
      • Q(K);
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);XP(G)::QAB1(K),XS(b)
        • S(b);XP(C)::S(B)
        • S(b);XP(G)::S(B)
        • S(d);XP(G)::S(B)
        • R(e);::QAB1(K),XS(b)
        • R(e);::S(B)
        • S(b);::S(B)
        • S(d);::S(B)
        • P(h);::S(B)
      • Refutation
        • R(e);XR(E)
  • Actual
    • Q(K);
    • Threat
      • QAB(K),XP(j)
    • Vars
      • Q(a);N_GUARD,P_SPINQ(a),XP(G)::B(I)+S(H),XR(i)
      • R(i);N_GUARD,P_SPINR(i),XP(G)::B(I)+S(H)
      • S(b);OGATE,P_SPINS(b),XP(G)::P(A)
      • S(d);OGATE,P_SPINS(d),XP(G)::P(C)
      • R(e);SBLOCK::S(B)
      • S(b);OGATE::R1(E),XP(c)
      • S(d);SBLOCK::S(B)
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