MESON Chess Problem Database

Problem Display
PID: 238705 (6N1/8/5p1B/Rp2b3/R1p1k1P1/N1p5/2K5/2nQ4 w - - 0 1)

Dyachuk, Vasyl Vasilovich

idee & form, 2001

6N1/8/5p1B/Rp2b3/R1p1k1P1/N1p5/2K5/2nQ4

#2

8 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Qd3#
    • 1...Se2
      • 2.Qd3#
    • 1...Sb3
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
    • 1...bxa4
      • 2.Qd5#
    • 1...b4
      • 2.Qd5#
  • Tries
    • 1.Sxb5?
      • threat
        • 2.Qh1#
      • 1...Bh2
        • 2.Sxc3#
      • 1...Bg3
        • 2.Sxc3#
      • 1...Bd4
        • 2.Sd6#
      • 1...Bd6
        • 2.Sxc3#
        • 2.Sxd6#
      • 1...Bc7
        • 2.Sxc3#
      • 1...Bb8
        • 2.Sxc3#
      • 1...Bf4!
    • 1.Rxc4+?
      • 1...bxc4
        • 2.Qd5#
      • 1...Bd4!
    • 1.Rxb5?
      • threat
        • 2.Qd5#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Bd4
        • 2.Qh1#
      • 1...Bf4!
    • 1.Qf3+?
      • 1...Kd4
        • 2.Be3#
      • 1...Kxf3!
  • Keys
    • 1.Sxc4!
      • threat
        • 2.Sd6#
      • 1...bxa4
        • 2.Qd5#
      • 1...bxc4
        • 2.Qd5#
      • 1...Bd4
        • 2.Qh1#
      • 1...Se2
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Bh2
        • 2.Sxf6#
      • 1...Bg3
        • 2.Sxf6#
      • 1...Bf4
        • 2.Sxf6#
      • 1...Bd6
        • 2.Sxf6#
      • 1...Bc7
        • 2.Sxf6#
      • 1...Bb8
        • 2.Sxf6#
      • 1...b4
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::QAB1(A)
    • S(a);N_GUARD::QAB1(A),XS(a)
    • P(e);N_SPINP(c),XR(D)::QAB1(A)
    • P(e);N_SPINP(c)::QAB1(A)
  • Tries
    • Try
      • S(C);XP(e)
      • Threat
        • QAB(A)
      • Vars
        • B(f);N_GUARD::S(C),XP(b)
        • B(f);N_GUARD,N_SPINP(c)::S(C)
      • Refutation
        • B(f);
    • Try
      • R(D);CHECK,XP(c)
      • Vars
        • P(e);XR(D)::QAB1(A)
      • Refutation
        • B(f);P_SPINB(f)
    • Try
      • R(F);XP(e)
      • Threat
        • QAB1(A)
      • Vars
        • S(a);N_GUARD::QAB1(A),XS(a)
        • B(f);N_SPINP(c),SBLOCK::QAB(A)
      • Refutation
        • B(f);
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);P-FLIGHT::B(G)
      • Refutation
        • K(d);N_SPINP(c),S_FLIGHT,XQ(A)
  • Actual
    • S(C);XP(c)
    • Threat
      • R(D)+S(C),DCHECK
    • Vars
      • P(e);XR(D)::QAB1(A)
      • P(e);P_SPINP(e),XS(C)::QAB1(A)
      • B(f);SBLOCK::QAB(A)
      • S(a);N_GUARD::QAB1(A)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • B(f);N_GUARD::S(H),XP(g)
      • P(e);::QAB1(A)
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