MESON Chess Problem Database

Problem Display
PID: 150564 (6Q1/4p3/4P3/3Pp3/n1BkNR1B/1p5R/bn1N3p/6bK w - - 0 1)

Agostini, Valerio

Best Problems, 2009

6Q1/4p3/4P3/3Pp3/n1BkNR1B/1p5R/bn1N3p/6bK

#2

10 + 9

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bf2
      • 2.Bxf2#
    • 1...Sd1
      • 2.Rd3#
    • 1...Sd3
      • 2.Rxd3#
    • 1...exf4
      • 2.Qg7#
      • 2.Qh8#
  • Tries
    • 1.Qg3?
      • 1...Sxc4
        • 2.Qd3#
      • 1...exf4
        • 2.Qg7#
      • 1...Be3
        • 2.Qxe3#
      • 1...Bf2
        • 2.Qxf2#
      • 1...Sd1
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sc5
        • 2.Qc3#
      • 1...Sb6
        • 2.Qc3#
      • 1...Bb1!
  • Keys
    • 1.Qc8!
      • 1...Sxc4
        • 2.Qxc4#
      • 1...exf4
        • 2.Qh8#
      • 1...Be3
        • 2.Sf3#
      • 1...Bf2
        • 2.Bxf2#
      • 1...Bb1
        • 2.Sxb3#
      • 1...Sd1
        • 2.Rd3#
      • 1...Sd3
        • 2.Rxd3#
      • 1...Sc3
        • 2.Qc5#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sb6
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::B(G),XB(a)
    • S(c);N_GUARD::R1(C)
    • S(c);N_GUARD::R1(C),XS(c)
  • Tries
    • Try
      • Q(J);
      • Vars
        • S(c);N_GUARD,XB(D)::QAR1(J)
        • P(h);OGATEB,XR(F)::QAB(J)
        • B(a);N_GUARD::QAB1(J),XB(a)
        • B(a);N_GUARD::QAB(J),XB(a)
        • S(c);N_GUARD::QAR1(J)
        • S(c);N_GUARD::QAR1(J),XS(c)
        • S(f);N_GUARD::QAB1(J),XS(f)
        • S(f);N_GUARD::QAB1(J)
      • Refutation
        • B(b);
  • Actual
    • Q(J);
    • Vars
      • S(c);OGATE,XB(D)::QAR1(J),XS(c)
      • P(h);OGATEB,XR(F)::QAB(J)
      • B(a);SBLOCK::S(B)
      • B(a);N_GUARD::B(G),XB(a)
      • B(b);N_GUARD::S(B),XP(e)
      • S(c);N_GUARD::R1(C)
      • S(c);N_GUARD::R1(C),XS(c)
      • S(f);N_GUARD::QAB1(J)
      • S(f);N_GUARD::QAB1(J),XS(f)
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