MESON Chess Problem Database

Problem Display
PID: 75878 (8/5BB1/2p5/1RN1Pp2/1Ppk1N1K/r1nn2R1/1Q2P3/1q3bb1 w - - 0 1)

Pilchenko, Viacheslav Karlovich

Shavirin, Valery Mikhailovich

2nd HM., Praca, 2000

8/5BB1/2p5/1RN1Pp2/1Ppk1N1K/r1nn2R1/1Q2P3/1q3bb1

#2

11 + 10

23 Die Schwalbe 2007
6166 FIDE Album (1998-2000) 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe2
      • 2.Sxe2#
    • 1...Bh2
      • 2.e3#
    • 1...Sc1
      • 2.e6#
    • 1...Se1
      • 2.e6#
    • 1...Sxb2
      • 2.e6#
    • 1...Sf2
      • 2.e3#
      • 2.e6#
    • 1...Sxb4
      • 2.e6#
  • Tries
    • 1.Bd5?
      • threat
        • 2.Sce6#
      • 1...Sxc5
        • 2.e6#
      • 1...cxd5
        • 2.Sfe6#
      • 1...Sxf4!
    • 1.exd3?
      • threat
        • 2.Sce6#
        • 2.e6#
      • 1...Qxd3
        • 2.e6#
      • 1...Bxd3
        • 2.e6#
      • 1...Qe1
        • 2.Sce6#
      • 1...cxd3!
    • 1.e4?
      • threat
        • 2.Sfe6#
      • 1...Sxf4
        • 2.e6#
      • 1...fxe4
        • 2.Sce6#
      • 1...Sxc5!
  • Keys
    • 1.Qd2!
      • threat
        • 2.e6#
      • 1...Se4
        • 2.Sce6#
      • 1...Sd5
        • 2.Sfe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • B(b);XP(B)::S(E),XB(b)
    • B(c);N_GUARD::P(B)
    • S(f);N_GUARD::B(K)+P(I)
    • S(f);N_GUARD,N_SPINS(e),XQ(A)::B(K)+P(I)
    • S(f);N_GUARD,XP(D)::B(K)+P(I)
  • Tries
    • Try
      • B(J);
      • Threat
        • S(H)
      • Vars
        • S(f);N_GUARD,XS(H)::B(K)+P(I)
        • P(j);SBLOCK,XB(J)::S(E)
      • Refutation
        • S(f);XS(E)
    • Try
      • P(B);XS(f)
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);XP(B)::B(K)+P(I)
        • B(b);XP(B)::B(K)+P(I)
        • Q(a);P_PINR(C)::S(H)
      • Refutation
        • P(g);XP(B)
    • Try
      • P(B);
      • Threat
        • S(E)
      • Vars
        • S(f);N_GUARD,XS(E)::B(K)+P(I)
        • P(i);SBLOCK,XP(B)::S(H)
      • Refutation
        • S(f);XS(H)
  • Actual
    • Q(A);N_PINS(e),P_PINS(f)
    • Threat
      • B(K)+P(I)
    • Vars
      • S(e);SBLOCK::S(H)
      • S(e);SBLOCK::S(E)
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