MESON Chess Problem Database

Problem Display
PID: 176152 (8/p2q4/3Q4/R1pp1pR1/4k3/8/B1P3K1/5N2 w - - 0 1)

Taraba, Jozef

4th Prize, Schach-Echo, 1970

8/p2q4/3Q4/R1pp1pR1/4k3/8/B1P3K1/5N2

#2

7 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Bd5#
    • 1...f4
      • 2.Qe5#
  • Tries
    • 1.Rg4+?
      • 1...f4
        • 2.Rxf4#
        • 2.Qxf4#
      • 1...fxg4!
    • 1.Qxc5?
      • threat
        • 2.Qe3#
      • 1...Kf4
        • 2.Qe3#
      • 1...d4
        • 2.Qe5#
      • 1...f4
        • 2.Sd2#
      • 1...Ke5!
    • 1.Qe6+?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kf4
        • 2.Qe3#
      • 1...Qxe6!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qe3#
      • 1...Kd4
        • 2.Qe3#
      • 1...d4
        • 2.Sd2#
      • 1...f4
        • 2.Qd3#

There are these versions: 92043

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::B(B)
    • P(d);::QAR1(G)
  • Tries
    • Try
      • R(F);CHECK
      • Refutation
        • P(d);XR(F)
    • Try
      • Q(G);XP(b)
      • Threat
        • QAR1(G)
      • Vars
        • K(a);P-FLIGHT::QAB1(G)
        • P(c);OGATE::QAR1(G)
        • P(d);SBLOCK::S(A)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(c)
    • Try
      • Q(G);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(G)
      • Refutation
        • Q(f);XQ(G)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • K(a);P-FLIGHT::QAB1(G)
      • P(c);SBLOCK::S(A)
      • P(d);SBLOCK::QAB1(G)
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