MESON Chess Problem Database

Problem Display
PID: 93734 (8/8/8/8/4BQ1r/1K2B2r/PN1N3q/2k1b3 w - - 0 1)

Bubla, M

Sachove umeni (Ceskoslovensky sach), 1955

8/8/8/8/4BQ1r/1K2B2r/PN1N3q/2k1b3

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.Qc7#
    • 1...Qh1
      • 2.Qc7#
    • 1...Qxd2
      • 2.Qc7#
    • 1...Qf2
      • 2.Qc7#
    • 1...Qg2
      • 2.Qc7#
    • 1...Rg3
      • 2.Qc7#
    • 1...Bxd2
      • 2.Qf1#
  • Tries
    • 1.Sb1+?
      • 1...Qd2
        • 2.Qc7#
      • 1...Bd2
        • 2.Qf1#
      • 1...Rxe3+!
    • 1.Sf3+?
      • 1...Qd2
        • 2.Qc7#
      • 1...Bd2!
  • Keys
    • 1.Ka3!
      • threat
        • 2.Sb3#
      • 1...Qxd2
        • 2.Qc7#
      • 1...Bxd2
        • 2.Qf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • Q(c);N_GUARD::QAR(G)
    • Q(c);N_GUARD,P_SPINQ(c),XS(C)::QAR(G)
    • R(d);S_CUTQ(c)::QAR(G)
    • B(b);OGATEB,P_SPINB(b),XS(C)::QAR(G)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • Q(c);P_SPINQ(c)::QAR(G)
        • B(b);P_SPINB(b),S_CUTQ(c),S_CUTR(d)::QAR(G)
      • Refutation
        • R(d);CHECK,P_SPINR(d),XB(E)
    • Try
      • S(C);CHECK,N_SPINB(E)
      • Vars
        • Q(c);P_SPINQ(c)::QAR(G)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • K(D);P-FLIGHT
    • Threat
      • B(E)+S(C),DCHECK
    • Vars
      • Q(c);N_GUARD,P_SPINQ(c),XS(C)::QAR(G)
      • B(b);OGATEB,P_SPINB(b),XS(C)::QAR(G)
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