MESON Chess Problem Database

Problem Display
PID: 263451 (1B6/8/Q3N3/2Nk4/6p1/5r2/2K5/4b2B w - - 0 1)

Matrenin, Mikhail Vasilevich

Zadachi i Etyudi, 2009

1B6/8/Q3N3/2Nk4/6p1/5r2/2K5/4b2B

#2

6 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...g3
      • 2.Bxf3#
  • Tries
    • 1.Qc6+?
      • 1...Kc4
        • 2.Sd3#
        • 2.Sa6#
      • 1...Kxc6!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sf6#
      • 1...Rf2+
        • 2.Sxf2#
      • 1...Rc3+
        • 2.Sxc3#
      • 1...Kxe4
        • 2.Qd3#
      • 1...Rf6
        • 2.Sc3#
        • 2.Sxf6#
      • 1...Bc3
        • 2.Sxc3#
      • 1...Bh4
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • P(c);N_GUARD::B(A),XR(b)
  • Tries
    • Try
      • Q(D);CHECK
      • Refutation
        • K(d);S_FLIGHT,XQ(D)
  • Actual
    • S(C);N_PINR(b)
    • Threat
      • S(C)
    • Vars
      • R(b);CHECK::B(A)+S(C),XR(b)
      • R(b);CHECK::B(A)+S(C),DCHECK,XR(b)
      • K(d);N_GUARD,P_SPINR(b),S_FLIGHT,XS(C)::QAB1(D)
      • B(a);N_GUARD::S(C),XB(a)
      • B(a);N_GUARD::S(C)
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