MESON Chess Problem Database

Problem Display
PID: 64778 (1B4B1/4pn2/1KP1pbQ1/1PpkP3/R2NpP2/1nPp4/2p5/2q2b2 w - - 0 1)

Rudenko, Valentin Fedorovich

Shedey, Sergey Oleksandrovich

1st Prize, Volgograd Sports Committee, 1981

1B4B1/4pn2/1KP1pbQ1/1PpkP3/R2NpP2/1nPp4/2p5/2q2b2

#2

11 + 12

3752 FIDE Album (1980-1982) 1988

SOLUTION

  • SOUND
  • Sets
    • 1...Bh4
      • 2.Qxe6#
    • 1...Bxe5
      • 2.Qxe6#
    • 1...Bg5
      • 2.Qxe6#
    • 1...Bg7
      • 2.Qxe6#
    • 1...Bh8
      • 2.Qxe6#
    • 1...Sxd4
      • 2.c4#
    • 1...Sxe5
      • 2.Bxe6#
    • 1...Sd6
      • 2.Bxe6#
    • 1...Sh6
      • 2.Bxe6#
    • 1...Sh8
      • 2.Bxe6#
    • 1...cxd4
      • 2.c4#
  • Tries
    • 1.Sxc2?
      • threat
        • 2.Qxe4#
        • 2.c4#
      • 1...Qxf4
        • 2.c4#
      • 1...Qxc2
        • 2.Qxe4#
      • 1...Sxe5
        • 2.Qxe4#
      • 1...dxc2
        • 2.Qxe4#
      • 1...Qe3
        • 2.Sxe3#
        • 2.c4#
      • 1...Qe1
        • 2.c4#
      • 1...Bg2
        • 2.c4#
      • 1...Sd2
        • 2.Se3#
      • 1...Sd4
        • 2.c4#
      • 1...Sa5
        • 2.Qxe4#
      • 1...Sg5
        • 2.c4#
      • 1...d2
        • 2.Se3#
        • 2.Qxe4#
      • 1...e3
        • 2.Qe4#
        • 2.c4#
      • 1...c4
        • 2.Sb4#
      • 1...Sd6!
    • 1.Bxf7?
      • threat
        • 2.Bxe6#
      • 1...Sxd4
        • 2.c4#
      • 1...cxd4
        • 2.c4#
      • 1...Bh3!
  • Keys
    • 1.Sxe6!
      • threat
        • 2.Sc7#
      • 1...Kxe6
        • 2.Bxf7#
      • 1...Qxf4
        • 2.Sxf4#
      • 1...Bxe5
        • 2.c4#
      • 1...Sxe5
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • B(j);OGATE::QAB1(I),XP(i)
    • B(j);OGATE,XP(F)::QAB1(I),XP(i)
    • S(d);SBLOCK,XS(C)::P(A)
    • S(l);OGATE,P_SPINP(i),XP(F)::B(K),XP(i)
    • S(l);OGATE,P_SPINP(i)::B(K),XP(i)
    • P(g);SBLOCK,XS(C)::P(A)
  • Tries
    • Try
      • S(C);XP(c)
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);XP(D)::P(A)
        • Q(a);XS(C)::QAB1(I),XP(f)
        • S(l);P_SPINP(i),XP(F)::QAB1(I),XP(f)
        • P(e);XS(C)::QAB1(I),XP(f)
        • Q(a);::P(A)
        • B(b);::P(A)
        • S(d);S_CUTQ(a)::S(C)
        • S(d);::P(A)
        • S(d);::QAB1(I),XP(f)
        • S(l);P_SPINP(i)::P(A)
        • P(g);N_GUARD,SBLOCK::S(C)
      • Refutation
        • S(l);P_SPINP(i)
    • Try
      • B(K);P_PINP(i),XS(l)
      • Threat
        • B(K),XP(i)
      • Vars
        • S(d);SBLOCK,XS(C)::P(A)
        • P(g);SBLOCK,XS(C)::P(A)
      • Refutation
        • B(b);
  • Actual
    • S(C);XP(i)
    • Threat
      • S(C)
    • Vars
      • K(h);OGATEB,P_SPINB(j),P_SPINS(l),S_FLIGHT,XS(C)::B(K),XS(l)
      • Q(a);XP(D)::S(C),XQ(a)
      • B(j);XP(F)::P(A)
      • S(l);XP(F)::QAB1(I),XP(f)
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