MESON Chess Problem Database

Problem Display
PID: 188547 (3nK3/8/R3pR2/2p1k3/4B2P/8/6p1/6Q1 w - - 0 1)

Aleksandrov, Vladimir Aleksandrovich

Phenix, 1992

3nK3/8/R3pR2/2p1k3/4B2P/8/6p1/6Q1

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf6
      • 2.Qa1#
    • 1...Sb7
      • 2.Raxe6#
    • 1...Sf7
      • 2.Raxe6#
  • Tries
    • 1.Qxc5+?
      • 1...Kxf6
        • 2.Qd4#
        • 2.Qc3#
        • 2.Qg5#
      • 1...Kxe4!
  • Keys
    • 1.Rd6!
      • 1...Kxe4
        • 2.Qe1#
      • 1...Kxd6
        • 2.Qh2#
      • 1...Kxf6
        • 2.Qa1#
      • 1...Sc6
        • 2.Rdxe6#
      • 1...Sb7
        • 2.Rdxe6#
      • 1...Sf7
        • 2.Rdxe6#
      • 1...c4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);P_SPINP(d),S_FLIGHT,XR(E)::QAB(A)
    • S(e);N_GUARD::R1(D),XP(d)
  • Tries
    • Try
      • Q(A);CHECK,XP(b)
      • Refutation
        • K(c);P-FLIGHT,XB(B)
  • Actual
    • R(D);
    • Vars
      • K(c);OGATEB,P-FLIGHT,XB(B)::QAR(A)
      • K(c);P_SPINP(d),S_FLIGHT,XR(D)::QAB(A)
      • K(c);P_SPINP(d),S_FLIGHT,XR(E)::QAB(A)
      • S(e);N_GUARD::R1(D),XP(d)
      • P(b);N_GUARD::QAB1(A)
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