MESON Chess Problem Database

Problem Display
PID: 207792 (6K1/2N5/P2Q4/k7/p7/8/R2bn1p1/5bq1 w - - 0 1)

Bouchez, Laurent

Phenix, 1996

6K1/2N5/P2Q4/k7/p7/8/R2bn1p1/5bq1

#2

5 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Qc5#
    • 1...Qc5
      • 2.Qxc5#
    • 1...Qh1
      • 2.Qc5#
    • 1...a3
      • 2.Rxa3#
  • Keys
    • 1.Rb2!
      • threat
        • 2.Rb5#
      • 1...a3
        • 2.Qxa3#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Qb6
        • 2.Qxb6#
      • 1...Bb4
        • 2.Qxb4#
      • 1...Sc1
        • 2.Qxd2#
      • 1...Sc3
        • 2.Qb4#
      • 1...Sg3
        • 2.Qxd2#
      • 1...Sd4
        • 2.Qb6#
      • 1...Sf4
        • 2.Qxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • Q(b);N_GUARD::QAR2(C)
    • Q(b);N_GUARD::QAR2(C),XQ(b)
    • P(f);OGATEB::R(A),XP(f)
  • Actual
    • R(A);N_PINP(f)
    • Threat
      • R1(A)
    • Vars
      • P(f);OGATEB::QAR2(C),XP(f)
      • Q(b);N_GUARD::QAR2(C),XQ(b)
      • Q(b);N_GUARD::QAB1(C),XQ(b)
      • B(c);N_GUARD::QAB1(C),XB(c)
      • S(d);N_GUARD::QAB(C),XB(c)
      • S(d);S_CUTB(c)::QAB1(C)
      • S(d);S_CUTQ(b)::QAB1(C)
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