MESON Chess Problem Database

Problem Display
PID: 80015 (8/8/5Q2/3p1n2/3r1p2/1K1k4/2N5/2B1R1n1 w - - 0 1)

di Scala, Pascal

La Cle, 1970

8/8/5Q2/3p1n2/3r1p2/1K1k4/2N5/2B1R1n1

#2

5 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Qc3#
    • 1...Rb4+
      • 2.Sxb4#
    • 1...Re4
      • 2.Qc3#
    • 1...Se3
      • 2.Qxd4#
    • 1...Sg3
      • 2.Qxd4#
    • 1...Sh4
      • 2.Qxd4#
    • 1...Sd6
      • 2.Qxd4#
    • 1...Sh6
      • 2.Qxd4#
    • 1...Se7
      • 2.Qxd4#
    • 1...Sg7
      • 2.Qxd4#
  • Keys
    • 1.Qe5!
      • threat
        • 2.Rd1#
      • 1...Rb4+
        • 2.Sxb4#
      • 1...Re4
        • 2.Qc3#
      • 1...Sf3
        • 2.Qe2#
      • 1...Se3
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • R(c);OGATE::QAR1(E)
    • R(c);CHECK,N_GUARD::S(C),XR(c)
    • S(f);N_GUARD::QAR1(E),XR(c)
  • Actual
    • Q(E);
    • Threat
      • R(B)
    • Vars
      • R(c);CHECK,N_GUARD::S(C),XR(c)
      • R(c);OGATE::QAR1(E)
      • S(a);N_GUARD::QAB1(E)
      • S(f);N_GUARD::QAR1(E),XR(c)
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