MESON Chess Problem Database

Problem Display
PID: 12157 (8/6B1/2b5/Q2p4/2k1r3/4b3/2K5/5N2 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1975

8/6B1/2b5/Q2p4/2k1r3/4b3/2K5/5N2

#2

4 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sxe3#
    • 1...Rf4
      • 2.Sxe3#
    • 1...Rg4
      • 2.Sxe3#
    • 1...Rh4
      • 2.Sxe3#
    • 1...Bg1
      • 2.Sd2#
    • 1...Bd2
      • 2.Sxd2#
    • 1...Bf2
      • 2.Sd2#
    • 1...Bd4
      • 2.Sd2#
    • 1...Bc5
      • 2.Sd2#
    • 1...Bb6
      • 2.Sd2#
    • 1...Ba7
      • 2.Sd2#
    • 1...Bb5
      • 2.Qc3#
  • Tries
    • 1.Bf8?
      • threat
        • 2.Qb4#
      • 1...Ba4+
        • 2.Qxa4#
      • 1...Kd4
        • 2.Qc3#
      • 1...Bd2
        • 2.Qc5#
      • 1...Bc5
        • 2.Qxc5#
      • 1...d4
        • 2.Qc5#
      • 1...Re7!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Qc5#
      • 1...Ba4+
        • 2.Qxa4#
      • 1...Kxd4
        • 2.Qc3#
      • 1...Rxd4
        • 2.Sxe3#
      • 1...Bxd4
        • 2.Sd2#
      • 1...Bb5
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • R(c);N_GUARD::S(A),XB(a)
    • B(a);N_GUARD::S(A)
    • B(a);N_GUARD::S(A),XB(a)
    • B(e);SBLOCK::QAR1(C)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR1(C)
      • Vars
        • B(e);CHECK,N_GUARD::QAR2(C),XB(e)
        • K(b);P-FLIGHT::QAB1(C)
        • B(a);N_GUARD::QAR1(C)
        • B(a);N_GUARD::QAR1(C),XB(a)
        • P(d);S_CUTB(a)::QAR1(C)
      • Refutation
        • R(c);
  • Actual
    • B(D);
    • Threat
      • QAR1(C)
    • Vars
      • B(e);CHECK,N_GUARD::QAR2(C),XB(e)
      • K(b);P-FLIGHT,XB(D)::QAB1(C)
      • R(c);N_GUARD,SBLOCK,XB(D)::S(A),XB(a)
      • B(a);N_GUARD,SBLOCK,XB(D)::S(A)
      • B(e);SBLOCK::QAR1(C)
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