MESON Chess Problem Database

Problem Display
PID: 265375 (8/1p2N3/1P5p/1K2p2p/3pk2P/1Q5N/2rPpp2/1BB1nr2 w - - 0 1)

Klipachev, Vladimir Panteleevich

Zadachi i Etyudi, 2010

8/1p2N3/1P5p/1K2p2p/3pk2P/1Q5N/2rPpp2/1BB1nr2

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Qd5#
    • 1...Sf3
      • 2.d3#
    • 1...d3
      • 2.Qd5#
  • Tries
    • 1.Bxc2+?
      • 1...Sd3
        • 2.Qd5#
        • 2.Qxd3#
      • 1...d3
        • 2.Qd5#
      • 1...Sxc2!
    • 1.Qf7?
      • threat
        • 2.Qf5#
      • 1...d3
        • 2.Qd5#
      • 1...Kd3!
    • 1.d3+?
      • 1...Sxd3
        • 2.Qd5#
      • 1...Kf3!
  • Keys
    • 1.Qg3!
      • 1...Sf3
        • 2.Qg6#
      • 1...d3
        • 2.Qe3#
      • 1...Rg1
        • 2.Sxf2#
      • 1...Rh1
        • 2.Sxf2#
      • 1...Sg2
        • 2.d3#
      • 1...Sd3
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);N_SPINR(c),SBLOCK::QAB1(D)
    • S(a);N_GUARD,SBLOCK::P(C)
    • P(f);N_SPINR(c)::QAB1(D)
  • Tries
    • Try
      • B(A);CHECK,XR(c)
      • Vars
        • P(f);P_SPINP(f)::QAB1(D)
      • Refutation
        • S(a);XB(A)
    • Try
      • Q(D);
      • Threat
        • QAB1(D)
      • Vars
        • P(f);N_SPINR(c)::QAB1(D)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • P(C);CHECK,N_PINR(c)
      • Vars
        • S(a);SBLOCK,XP(C)::QAB1(D)
      • Refutation
        • K(g);S_FLIGHT
  • Actual
    • Q(D);
    • Vars
      • S(a);SBLOCK::QAB(D)
      • P(f);N_GUARD,N_SPINR(c)::QAR1(D)
      • R(b);N_GUARD::S(E),XP(e)
      • S(a);N_GUARD::P(C)
      • S(a);N_GUARD,N_SPINR(c),SBLOCK::QAB(D)
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