MESON Chess Problem Database

Problem Display
PID: 251808 (q2R2B1/r2b4/8/1N3P1R/2p1kPp1/6P1/1nPn2K1/Q1BN2b1 w - - 0 1)

Mucha, Boris I

Probleemblad, 1982

q2R2B1/r2b4/8/1N3P1R/2p1kPp1/6P1/1nPn2K1/Q1BN2b1

#2

12 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Be3
      • 2.Sdc3#
    • 1...Bd4
      • 2.Sd6#
    • 1...Bxf5
      • 2.Sbc3#
    • 1...Bc6
      • 2.Sbc3#
    • 1...Be6
      • 2.Sbc3#
    • 1...Bc8
      • 2.Sbc3#
    • 1...Be8
      • 2.Sbc3#
    • 1...Sxd1
      • 2.Qe5#
    • 1...Sd3
      • 2.Sd6#
    • 1...Sa4
      • 2.Sd6#
      • 2.Qe5#
    • 1...Sf1
      • 2.Sdc3#
    • 1...Sb3
      • 2.Sdc3#
    • 1...Sf3
      • 2.Sdc3#
  • Tries
    • 1.Bxd2?
      • threat
        • 2.Sdc3#
      • 1...Sxd1
        • 2.Sd6#
        • 2.Qe5#
      • 1...Bd4
        • 2.Sd6#
      • 1...Sa4
        • 2.Sd6#
        • 2.Qe5#
      • 1...c3
        • 2.Sdxc3#
      • 1...Ra3!
  • Keys
    • 1.f6!
      • threat
        • 2.Re5#
      • 1...Qd5
        • 2.Bxd5#
      • 1...Qb8
        • 2.Bd5#
      • 1...Bd4
        • 2.Sd6#
      • 1...Bf5
        • 2.Sbc3#
      • 1...Sd3
        • 2.Sd6#
      • 1...Sf3
        • 2.Sdc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • B(a);SBLOCK::S(C)
    • B(a);SBLOCK::S(H)
    • B(h);XP(I)::S(H)
    • B(h);::S(H)
    • S(b);OGATE,XS(C)::QAR1(A)
    • S(b);::S(H)
    • S(c);::S(C)
  • Tries
    • Try
      • B(B);XS(c)
      • Threat
        • S(C)
      • Vars
        • B(a);SBLOCK::S(H)
        • P(d);::S(C),XP(d)
      • Refutation
        • R(g);
  • Actual
    • P(I);
    • Threat
      • R1(J)
    • Vars
      • Q(i);N_GUARD::B(L),XQ(i)
      • Q(i);N_GUARD::B(L)
      • B(a);SBLOCK::S(H)
      • B(h);::S(H)
      • S(b);::S(H)
      • S(c);::S(C)
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