MESON Chess Problem Database

Problem Display
PID: 159998 (N1R1b3/p3Kn2/1P6/3k4/2p1p1Rr/1pn5/1Q1PN2B/b7 w - - 0 1)

Zurutuza, Imanol

Best Problems, 2011

N1R1b3/p3Kn2/1P6/3k4/2p1p1Rr/1pn5/1Q1PN2B/b7

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.Sf4#
    • 1...Sd1
      • 2.Sf4#
    • 1...Sa2
      • 2.Sf4#
    • 1...Sa4
      • 2.Sf4#
    • 1...Sb5
      • 2.Sf4#
    • 1...Sg5
      • 2.Rxg5#
    • 1...Sd8
      • 2.Rg5#
    • 1...Sh8
      • 2.Rg5#
    • 1...e3
      • 2.Sxc3#
    • 1...axb6
      • 2.Sxb6#
  • Tries
    • 1.Bd6?
      • threat
        • 2.Rc5#
      • 1...axb6
        • 2.Sxb6#
      • 1...Bc6
        • 2.Sc7#
      • 1...Sa4
        • 2.Sf4#
      • 1...Sxd6!
    • 1.Rg5+?
      • 1...Se5
        • 2.Rxe5#
      • 1...Sxg5!
    • 1.Qa3?
      • threat
        • 2.Rc5#
        • 2.Qc5#
      • 1...Sxe2
        • 2.Qc5#
      • 1...axb6
        • 2.Sxb6#
      • 1...Bc6
        • 2.Sc7#
      • 1...Sa4!
  • Keys
    • 1.d4!
      • threat
        • 2.Rc5#
      • 1...axb6
        • 2.Sxb6#
      • 1...cxd4 ep
        • 2.Qxb3#
      • 1...exd4 ep
        • 2.Sxc3#
      • 1...Bc6
        • 2.Sc7#
      • 1...Sa4
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • S(c);::S(C)
    • S(i);N_GUARD::R(E),XS(i)
    • S(i);N_GUARD::R(E)
    • P(e);::S(C),XS(c)
    • P(h);XP(F)::S(H),XP(h)
  • Tries
    • Try
      • B(D);
      • Threat
        • R1(I)
      • Vars
        • P(h);XP(F)::S(H),XP(h)
        • B(j);SBLOCK::S(H)
        • S(c);::S(C)
      • Refutation
        • S(i);XB(D)
    • Try
      • R(E);CHECK
      • Vars
        • S(i);N_GUARD,P_SPINS(i)::R1(E),XS(i)
      • Refutation
        • S(i);XR(E)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);XS(C)::QAR1(A)
        • P(h);XP(F)::S(H),XP(h)
        • B(j);SBLOCK::S(H)
      • Refutation
        • S(c);
  • Actual
    • P(B);
    • Threat
      • R1(I)
    • Vars
      • P(h);XP(F)::S(H),XP(h)
      • P(d);EP,OGATEB,XP(B)::QAB(A),XP(b)
      • P(e);EP,XP(B)::S(C),XS(c)
      • B(j);SBLOCK::S(H)
      • S(c);::S(C)
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