MESON Chess Problem Database

Problem Display
PID: 274464 (6B1/2NN4/3p2rp/5knK/2Q3p1/3P2Pp/bp1n4/2bq1r2 w - - 0 1)

Groeneveld, Cornelis

Springaren, 1991

6B1/2NN4/3p2rp/5knK/2Q3p1/3P2Pp/bp1n4/2bq1r2

#2

7 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Qc2
      • 2.Qxg4#
    • 1...Qb3
      • 2.Qxg4#
    • 1...Qe1
      • 2.Qxg4#
    • 1...Re1
      • 2.Qf4#
    • 1...Rg1
      • 2.Qf4#
    • 1...Rh1
      • 2.Qf4#
    • 1...Rf3
      • 2.Qxg4#
    • 1...Rf4
      • 2.Qxf4#
    • 1...Bb1
      • 2.Qd5#
    • 1...Sb3
      • 2.Qd5#
    • 1...Sdf3
      • 2.Qxg4#
    • 1...Sgf3
      • 2.Qf4#
  • Tries
    • 1.Qb5+?
      • 1...Bd5
        • 2.Qxd5#
      • 1...d5!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sd4#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Sb3
        • 2.Qd5#
      • 1...Sdf3
        • 2.Qxg4#
      • 1...Sgf3
        • 2.Qf4#
      • 1...Se6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • Q(b);N_GUARD::QAB1(C),XP(h)
    • R(c);N_GUARD::QAR1(C)
    • R(c);S_CUTQ(b)::QAB1(C),XP(h)
    • R(c);N_GUARD::QAR1(C),XR(c)
    • B(d);N_GUARD::QAR2(C)
    • S(f);S_CUTB(d)::QAR2(C)
    • S(f);S_CUTQ(b)::QAB1(C),XP(h)
    • S(j);S_CUTR(c)::QAR1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • B(d);N_GUARD,P_SPINB(d)::QAR2(C),XB(d)
      • Refutation
        • P(k);P_SPINP(k)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • R(c);N_GUARD::QAR1(C),XR(c)
      • S(f);S_CUTB(d)::QAR2(C)
      • S(f);S_CUTQ(b)::QAB1(C),XP(h)
      • S(j);S_CUTR(c)::QAR1(C)
      • S(j);S_CUTR(l)::S(E),XP(k)
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