MESON Chess Problem Database

Problem Display
PID: 134700 (4R3/1p1K1RQ1/2P1p2r/1B1kPP2/N1p4p/2pP1P1r/bPN3p1/6q1 w - - 0 1)

Taraba, Jozef

1st HM., Sachsische Zeitung-25 JT, 1982

4R3/1p1K1RQ1/2P1p2r/1B1kPP2/N1p4p/2pP1P1r/bPN3p1/6q1

#2

13 + 11

14580 Chess Compositions (Taraba) 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Sb4#
    • 1...Qc5
      • 2.Sxc3#
    • 1...Bb1
      • 2.Bxc4#
      • 2.dxc4#
    • 1...bxc6
      • 2.Bxc6#
  • Tries
    • 1.Qxh6?
      • threat
        • 2.Qxe6#
      • 1...exf5
        • 2.Qd6#
        • 2.Qe6#
      • 1...Kxe5!
    • 1.Qg4?
      • threat
        • 2.Qe4#
      • 1...Kxe5
        • 2.Qe4#
      • 1...exf5
        • 2.Sb4#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Qe1
        • 2.Qd4#
      • 1...Qe3!
    • 1.d4?
      • threat
        • 2.Sxc3#
        • 2.Sb6#
      • 1...Qxd4
        • 2.Sb4#
      • 1...cxb2
        • 2.Sc3#
        • 2.Sb6#
      • 1...Qe3
        • 2.Sb6#
      • 1...Qe1
        • 2.Sb6#
      • 1...b6
        • 2.Sxc3#
        • 2.Sxb6#
      • 1...Rxf3!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qd6#
      • 1...Kxe5
        • 2.Qd6#
      • 1...exf5
        • 2.Sxc3#
      • 1...Qc5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(a);SBLOCK::S(B)
    • Q(a);SBLOCK::S(E),XP(d)
    • P(k);OGATE,XP(I)::B(F),XP(k)
  • Tries
    • Try
      • Q(L);XR(j)
      • Threat
        • QAB1(L),XP(i)
      • Refutation
        • K(h);P-FLIGHT,P_SPINP(i),XP(G)
    • Try
      • Q(L);
      • Threat
        • QAB1(L)
      • Vars
        • K(h);P-FLIGHT,P_SPINP(i),XP(G)::QAR1(L)
        • P(i);XP(H)::S(B)
        • Q(a);N_GUARD::QAR1(L),XQ(a)
        • Q(a);N_GUARD::QAR1(L)
      • Refutation
        • Q(a);
    • Try
      • P(C);
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);SBLOCK,XP(C)::S(B)
        • Q(a);::S(E)
      • Refutation
        • R(e);XP(D)
  • Actual
    • Q(L);
    • Threat
      • QAR1(L)
    • Vars
      • K(h);P-FLIGHT,P_SPINP(i),XP(G)::QAB1(L)
      • P(i);XP(H)::S(E),XP(d)
      • Q(a);N_GUARD::QAR1(L),XQ(a)
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