MESON Chess Problem Database

Problem Display
PID: 149174 (4nb2/1R1p2r1/P1k5/p7/3P2N1/1BB5/7Q/7K w - - 0 1)

Agostini, Valerio

Best Problems, 2010

4nb2/1R1p2r1/P1k5/p7/3P2N1/1BB5/7Q/7K

#2

8 + 6

15148 Sadier Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.d5#
    • 1...Bd6
      • 2.Qg2#
    • 1...Sd6
      • 2.Se5#
    • 1...Sf6
      • 2.Qc7#
    • 1...Sc7
      • 2.Qxc7#
    • 1...d5
      • 2.Ba4#
  • Tries
    • 1.Qe5?
      • threat
        • 2.Ba4#
        • 2.Bd5#
        • 2.Qd5#
      • 1...Rg5
        • 2.Ba4#
        • 2.Bd5#
      • 1...Sd6
        • 2.Bd5#
        • 2.Qc5#
        • 2.Qd5#
      • 1...Sf6
        • 2.Ba4#
        • 2.Qc7#
      • 1...Sc7
        • 2.Qxc7#
      • 1...a4
        • 2.Bxa4#
        • 2.Bd5#
        • 2.Qd5#
      • 1...d5
        • 2.Ba4#
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Rh7+!
    • 1.Qg2+?
      • 1...d5
        • 2.Qxd5#
      • 1...Kd6!
  • Keys
    • 1.Bxa5!
      • threat
        • 2.Rb6#
      • 1...Bc5
        • 2.d5#
      • 1...Bd6
        • 2.Qg2#
      • 1...Sd6
        • 2.Se5#
      • 1...d5
        • 2.Ba4#
      • 1...d6
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(f);SBLOCK::P(E)
    • B(f);SBLOCK,S_CUTP(c)::QAB(B)
    • S(e);SBLOCK::S(F)
    • S(e);N_GUARD::QAR1(B)
    • S(e);N_GUARD::QAR1(B),XS(e)
    • P(c);SBLOCK::B(C)
  • Tries
    • Try
      • Q(B);
      • Threat
        • DUALS(3)
      • Vars
        • S(e);N_GUARD::QAR1(B),XS(e)
      • Refutation
        • R(d);CHECK
    • Try
      • Q(B);CHECK
      • Vars
        • P(c);P_SPINP(c)::QAB1(B),XP(c)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • B(D);XP(a)
    • Threat
      • R1(H)
    • Vars
      • B(f);SBLOCK::P(E)
      • B(f);SBLOCK,S_CUTP(c)::QAB(B)
      • S(e);SBLOCK::S(F)
      • P(c);SBLOCK::B(C)
      • P(c);SBLOCK,S_CUTB(f)::QAR(B)
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