MESON Chess Problem Database

Problem Display
PID: 160480 (K3Bb2/npQ5/kP6/p3p3/1p2q3/1N6/N7/R1R5 w - - 0 1)

Placanico, Pietro L

Best Problems, 2011

K3Bb2/npQ5/kP6/p3p3/1p2q3/1N6/N7/R1R5

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Qxb7#
    • 1...Qc2
      • 2.Qxb7#
    • 1...Qd3
      • 2.Qxb7#
    • 1...Qf5
      • 2.Qxb7#
    • 1...Qg6
      • 2.Qxb7#
    • 1...Qe1
      • 2.Qxb7#
    • 1...Qe2
      • 2.Qxb7#
    • 1...Qe3
      • 2.Qxb7#
    • 1...Qc4
      • 2.Qxb7#
    • 1...Qd4
      • 2.Qxb7#
    • 1...Qf4
      • 2.Qxb7#
    • 1...Qg4
      • 2.Qxb7#
    • 1...Qh4
      • 2.Qxb7#
    • 1...Bc5
      • 2.Sxc5#
    • 1...Bh6
      • 2.Sc5#
    • 1...Bg7
      • 2.Sc5#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Rxa5#
      • 1...Sc6
        • 2.Qxb7#
      • 1...a4
        • 2.Rxa4#
      • 1...Qd5!
    • 1.Sxb4+?
      • 1...Qxb4
        • 2.Qxb7#
      • 1...Bxb4!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Rxa5#
      • 1...Bxc5
        • 2.Sxc5#
      • 1...Qd5
        • 2.Sxb4#
      • 1...Sb5
        • 2.Bxb5#
      • 1...Sc6
        • 2.Qxb7#
      • 1...a4
        • 2.Ra5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 15
  • Sets
    • Q(b);N_GUARD::QAB1(F),XP(g)
    • Q(b);N_GUARD,SBLOCK::QAB1(F),XP(g)
    • B(h);N_GUARD::S(D),XB(h)
    • B(h);N_GUARD,SBLOCK::S(D)
    • B(h);N_GUARD::S(D)
  • Tries
    • Try
      • S(C);P_PINP(c)
      • Threat
        • R1(A),XP(c)
      • Vars
        • S(f);S_CUTQ(b)::QAB1(F),XP(g)
        • P(c);OGATEB::R(A),XP(c)
      • Refutation
        • Q(b);
    • Try
      • S(C);CHECK,P_PINP(c),XP(a)
      • Vars
        • Q(b);XS(C)::QAB1(F),XP(g)
      • Refutation
        • B(h);XS(C)
  • Actual
    • R(B);
    • Threat
      • R1(B),XP(c)
    • Vars
      • B(h);XR(B)::S(D),XB(h)
      • Q(b);N_GUARD::S(C),XP(a)
      • S(f);N_GUARD::B(H),XS(f)
      • S(f);S_CUTQ(b)::QAB1(F),XP(g)
      • P(c);::R1(B)
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