MESON Chess Problem Database

Problem Display
PID: 78547 (B6B/8/2nr1nb1/4Q3/8/3k4/1KR5/8 w - - 0 1)

Bouma, Gerhard Johan

3rd Prize, Nieuw Nederland, 1947

B6B/8/2nr1nb1/4Q3/8/3k4/1KR5/8

#2

5 + 5

114 Springaren 1965
3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Qe2#
    • 1...Be4
      • 2.Qc3#
    • 1...Sb4
      • 2.Qc3#
    • 1...Sa5
      • 2.Qc3#
    • 1...Sa7
      • 2.Qc3#
    • 1...Se7
      • 2.Qc3#
    • 1...Sb8
      • 2.Qc3#
    • 1...Sd8
      • 2.Qc3#
    • 1...Sg4
      • 2.Qe2#
    • 1...Sd5
      • 2.Qe2#
    • 1...Sh5
      • 2.Qe2#
    • 1...Sd7
      • 2.Qe2#
    • 1...Sh7
      • 2.Qe2#
    • 1...Se8
      • 2.Qe2#
    • 1...Sg8
      • 2.Qe2#
  • Keys
    • 1.Qf4!
      • threat
        • 2.Rd2#
      • 1...Be4
        • 2.Qd2#
      • 1...Rd4
        • 2.Qf3#
      • 1...Sd4
        • 2.Qd2#
      • 1...Se4
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 13
  • Sets
    • R(c);SBLOCK::QAB1(C)
    • B(e);SBLOCK::QAR1(C)
    • S(b);::QAR1(C)
    • S(d);::QAB1(C)
  • Actual
    • Q(C);
    • Threat
      • R1(B)
    • Vars
      • B(e);SBLOCK::QAR1(C)
      • R(c);SBLOCK::QAR2(C)
      • S(b);SBLOCK::QAR1(C)
      • S(d);::QAR2(C)
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