MESON Chess Problem Database

Problem Display
PID: 273850 (8/2K1n3/Q3R3/3k4/8/4P3/1n2P3/8 w - - 0 1)

Zivojinovic, Aleksandar

Mat, 1972

8/2K1n3/Q3R3/3k4/8/4P3/1n2P3/8

#2

5 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sf5
      • 2.Qc6#
    • 1...Sc6
      • 2.Qxc6#
    • 1...Sg6
      • 2.Qc6#
    • 1...Sc8
      • 2.Qc6#
    • 1...Sg8
      • 2.Qc6#
  • Tries
    • 1.Rxe7?
      • threat
        • 2.Qb5#
        • 2.Qc6#
      • 1...Sd3
        • 2.Qc6#
      • 1...Sa4
        • 2.Qc6#
      • 1...Kc5!
  • Keys
    • 1.Re4!
      • 1...Kxe4
        • 2.Qe6#
      • 1...Kc5
        • 2.Qa5#
      • 1...Sd1
        • 2.Qc4#
      • 1...Sd3
        • 2.Qc4#
      • 1...Sa4
        • 2.Qc4#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sf5
        • 2.Qc6#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sg6
        • 2.Qc6#
      • 1...Sc8
        • 2.Qc6#
      • 1...Sg8
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::QAB1(C)
    • S(c);N_GUARD::QAB1(C),XS(c)
  • Tries
    • Try
      • R(D);XS(c)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAB1(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(b);N_GUARD,S_FLIGHT,XR(D)::QAR2(C)
      • K(b);N_GUARD,P-FLIGHT::QAR2(C)
      • S(a);N_GUARD::QAB1(C)
      • S(a);N_GUARD::QAB1(C),XS(a)
      • S(c);N_GUARD::QAB1(C)
      • S(c);N_GUARD::QAB1(C),XS(c)
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Developed and maintained by Brian Stephenson.
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