MESON Chess Problem Database

Problem Display
PID: 247344 (8/BK1p1p2/3p2b1/2Pkp3/1R3P2/n1p4q/3NQ3/3R4 w - - 0 1)

Chobanyan, Shamil

Uralski Problemist, 2006

8/BK1p1p2/3p2b1/2Pkp3/1R3P2/n1p4q/3NQ3/3R4

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Se4#
    • 1...Sb1
      • 2.Qc4#
    • 1...Sc2
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
    • 1...Sb5
      • 2.Qc4#
    • 1...dxc5
      • 2.Qxe5#
  • Keys
    • 1.Rb6!
      • threat
        • 2.Rxd6#
      • 1...Kd4
        • 2.Sb3#
        • 2.Rxd6#
      • 1...Kxc5
        • 2.Sb3#
        • 2.Rb5#
      • 1...Ke6
        • 2.Qxe5#
      • 1...dxc5
        • 2.Qxe5#
      • 1...Qe6
        • 2.Se4#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sb5
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • Q(c);N_GUARD,SBLOCK::R(A)+S(B)
    • S(a);N_GUARD::QAB1(C)
    • S(a);N_GUARD::QAB1(C),XS(a)
    • P(f);N_GUARD,XP(F)::QAR1(C),XP(e)
  • Actual
    • R(D);
    • Threat
      • R1(D),XP(f)
    • Vars
      • K(d);P_SPINP(e),S_FLIGHT::QAR1(C),XP(e)
      • P(f);N_GUARD,SBLOCK,XP(F)::QAR1(C),XP(e)
      • Q(c);N_GUARD,SBLOCK::R(A)+S(B)
      • S(a);N_GUARD::QAB1(C),XS(a)
      • S(a);N_GUARD::QAB1(C)
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