MESON Chess Problem Database

Problem Display
PID: 140723 (N2nQ1K1/q1p5/B2B4/3kP3/2Rp4/3n2N1/1pPRP3/3r4 w - - 0 1)

Kopyl, Valery Volodimirovich

2nd Comm., Sachova skladba, 2010

N2nQ1K1/q1p5/B2B4/3kP3/2Rp4/3n2N1/1pPRP3/3r4

#2

11 + 8

3485 Sachova skladba 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.e4#
    • 1...Se1
      • 2.e4#
    • 1...Sb4
      • 2.e4#
    • 1...Sf4
      • 2.e4#
    • 1...Sc5
      • 2.Rcxd4#
    • 1...Sxe5
      • 2.Qxe5#
    • 1...Sc6
      • 2.Qf7#
    • 1...Se6
      • 2.Qc6#
    • 1...Sb7
      • 2.Sxc7#
      • 2.Qf7#
    • 1...Sf7
      • 2.Qxf7#
  • Tries
    • 1.Rxd4+?
      • 1...Qxd4
        • 2.Sxc7#
      • 1...Kxd4!
    • 1.Rc5+?
      • 1...Sxc5
        • 2.c4#
      • 1...Qxc5!
    • 1.Qc6+?
      • 1...Ke6
        • 2.Bc8#
      • 1...Sxc6!
    • 1.Qf7+?
      • 1...Se6
        • 2.Qf3#
      • 1...Sxf7!
  • Keys
    • 1.Rc6!
      • threat
        • 2.Bc4#
      • 1...Qxa6
        • 2.Sxc7#
      • 1...Sxe5
        • 2.e4#
      • 1...Sxc6
        • 2.Qf7#
      • 1...Qc5
        • 2.Sxc7#
      • 1...Sc5
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • S(c);P_SPINP(d)::P(C)
    • S(c);P_SPINP(d),S_CUTQ(f)::R1(E),XP(d)
    • S(c);OGATE,P_SPINP(d),XP(F)::QAR1(J),XS(c)
    • S(h);N_GUARD::QAB(J)
    • S(h);N_GUARD,SBLOCK::QAB1(J)
    • S(h);N_GUARD::QAB(J),XS(h)
  • Tries
    • Try
      • R(E);CHECK,XP(d)
      • Vars
        • Q(f);SBLOCK,XR(E)::S(I),XP(g)
      • Refutation
        • K(e);P-FLIGHT,P_SPINS(c),XR(E)
    • Try
      • R(E);CHECK
      • Vars
        • S(c);P_SPINP(d),XR(E)::P(A)
      • Refutation
        • Q(f);XR(E)
    • Try
      • Q(J);CHECK
      • Vars
        • K(e);S_FLIGHT::B(G)
      • Refutation
        • S(h);XQ(J)
    • Try
      • Q(J);CHECK
      • Vars
        • S(h);P_SPINS(h),SBLOCK::QAB(J)
      • Refutation
        • S(h);XQ(J)
  • Actual
    • R(E);
    • Threat
      • B(G)
    • Vars
      • Q(f);N_GUARD,XB(G)::S(I),XP(g)
      • S(c);P_SPINP(d),XP(F)::P(C)
      • S(h);N_GUARD,SBLOCK,XR(E)::QAB(J)
      • Q(f);N_GUARD::S(I),XP(g)
      • S(c);P_SPINP(d)::P(A)
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