MESON Chess Problem Database

Problem Display
PID: 37742 (7K/6N1/4p3/B3PN2/1Q1P1k1P/1r2RrpP/q1p1bpP1/8 w - - 0 1)

Pilchenko, Viacheslav Karlovich

2/4 Prize, Dninro, 1992

7K/6N1/4p3/B3PN2/1Q1P1k1P/1r2RrpP/q1p1bpP1/8

#2

11 + 9

3705 Album Russia (1992-1994) 2000
23 Die Schwalbe 2008

SOLUTION

  • SOUND
  • Tries
    • 1.Qf8?
      • threat
        • 2.Sh5#
        • 2.Sxe6#
      • 1...Rbxe3
        • 2.Sd6#
      • 1...Rfxe3
        • 2.Sd6#
      • 1...Rb1
        • 2.Sh5#
      • 1...Rb2
        • 2.Sh5#
      • 1...Ra3
        • 2.Sh5#
      • 1...Rc3
        • 2.Sh5#
      • 1...Rd3
        • 2.Sh5#
      • 1...Rb4
        • 2.Sh5#
      • 1...Rb5
        • 2.Sh5#
      • 1...Rb6
        • 2.Sh5#
      • 1...Rb7
        • 2.Sh5#
      • 1...Rb8
        • 2.Sh5#
      • 1...Bc4
        • 2.Sh5#
      • 1...exf5!
    • 1.d5+?
      • 1...Bc4
        • 2.Qxc4#
      • 1...Rxb4!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Re4#
      • 1...Kxe3
        • 2.Qd2#
      • 1...Rbxe3
        • 2.Sh5#
      • 1...Rfxe3
        • 2.Sxe6#
      • 1...Bd3
        • 2.Rxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Vars
        • R(e);SBLOCK,XR(B)::QAR(D)+S(I)
        • R(f);SBLOCK,XR(B)::QAR(D)+S(I)
        • R(e);::S(J)
        • R(e);P_PINQ(D)::S(J)
        • B(c);::S(J)
      • Refutation
        • P(i);P_SPINP(i),XS(I)
    • Try
      • P(E);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAR(D),XB(c)
      • Refutation
        • R(e);XQ(D)
  • Actual
    • S(I);
    • Threat
      • R1(B)
    • Vars
      • K(h);OGATEB,S_FLIGHT,XR(B)::QAB1(D)
      • R(e);SBLOCK,XR(B)::S(J)
      • R(f);SBLOCK,XR(B)::S(J),XP(i)
      • B(c);N_GUARD,S_CUTR(e)::R1(B),XR(f)
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