MESON Chess Problem Database

Problem Display
PID: 149217 (B7/2KP1NB1/1Q6/1ppP1n2/Rpk1rp2/1p2b3/1P2P3/5N2 w - - 0 1)

Placanico, Pietro L

Best Problems, 2010

B7/2KP1NB1/1Q6/1ppP1n2/Rpk1rp2/1p2b3/1P2P3/5N2

#2

11 + 9

15148 Sadier Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Se5#
    • 1...Bg1
      • 2.Sd2#
    • 1...Bd2
      • 2.Sxd2#
    • 1...Bf2
      • 2.Sd2#
    • 1...Bd4
      • 2.Sd2#
    • 1...Sg3
      • 2.Sd6#
    • 1...Sd4
      • 2.Sd6#
    • 1...Sh4
      • 2.Sd6#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sh6
      • 2.Sd6#
    • 1...Se7
      • 2.Sd6#
    • 1...bxa4
      • 2.Qa6#
  • Tries
    • 1.Se5+?
      • 1...Kd4
        • 2.Rxb4#
      • 1...Rxe5!
    • 1.Qxc5+?
      • 1...Bxc5
        • 2.Sd2#
      • 1...Kxc5!
    • 1.Qf6?
      • threat
        • 2.Qc3#
      • 1...bxa4
        • 2.Qa6#
      • 1...Rd4
        • 2.Se5#
      • 1...Bd2
        • 2.Sxd2#
      • 1...Bd4
        • 2.Sd2#
      • 1...Sd4
        • 2.Sd6#
      • 1...Re5!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Qxc5#
      • 1...Kxd4
        • 2.Rxb4#
      • 1...Rxd4
        • 2.Se5#
      • 1...Bxd4
        • 2.Sd2#
      • 1...Sxd4
        • 2.Sd6#
      • 1...cxd4
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • R(e);N_GUARD,SBLOCK::S(I)
    • B(b);N_GUARD::S(A)
    • B(b);N_GUARD::S(A),XB(b)
    • S(i);N_GUARD::S(I)
    • S(i);N_GUARD::S(I),XS(i)
    • P(g);N_SPINP(c),OGATEB,XR(D)::QAB(F)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • K(d);P-FLIGHT::R(D),XP(c)
      • Refutation
        • R(e);XS(I)
    • Try
      • Q(F);CHECK,XP(h)
      • Vars
        • B(b);SBLOCK,XQ(F)::S(A)
      • Refutation
        • K(d);N_SPINP(c),P-FLIGHT,XQ(F)
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • P(g);N_SPINP(c),OGATEB,XR(D)::QAB(F)
        • R(e);N_GUARD,SBLOCK::S(I)
        • B(b);N_GUARD::S(A),XB(b)
        • B(b);N_GUARD::S(A)
        • S(i);N_GUARD::S(I)
      • Refutation
        • R(e);
  • Actual
    • B(J);
    • Threat
      • QAR1(F),XP(h)
    • Vars
      • K(d);P-FLIGHT,XB(J)::R(D),XP(c)
      • R(e);N_GUARD,SBLOCK,XB(J)::S(I)
      • B(b);N_GUARD,SBLOCK,XB(J)::S(A)
      • S(i);N_GUARD,SBLOCK,XB(J)::S(I)
      • P(h);OGATEB,SBLOCK,XB(J)::QAR2(F)
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