MESON Chess Problem Database

Problem Display
PID: 226822 (5N2/4Qb2/r7/1r3P1P/1n2BkPK/B1n4p/3P4/2R1N3 w - - 0 1)

Groeneveld, Cornelis

US Problem Bulletin, 1982

5N2/4Qb2/r7/1r3P1P/1n2BkPK/B1n4p/3P4/2R1N3

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Sd3#
    • 1...Sc2
      • 2.Sd3#
    • 1...Sd3
      • 2.Sxd3#
    • 1...Sd5
      • 2.Sd3#
    • 1...Sc6
      • 2.Sd3#
    • 1...h2
      • 2.Sg2#
  • Tries
    • 1.Bh1?
      • threat
        • 2.Qe3#
      • 1...Be6
        • 2.Sg6#
      • 1...Re5
        • 2.Qg5#
      • 1...Sd1
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Scd5
        • 2.Rc4#
        • 2.Qe4#
      • 1...Sc2
        • 2.Sd3#
      • 1...Sbd5
        • 2.Sd3#
      • 1...Re6!
    • 1.Bg2?
      • threat
        • 2.Qe3#
      • 1...Be6
        • 2.Sg6#
      • 1...Re5
        • 2.Qg5#
      • 1...Sd1
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Scd5
        • 2.Rc4#
        • 2.Qe4#
      • 1...Sc2
        • 2.Sd3#
      • 1...Sbd5
        • 2.Sd3#
      • 1...Re6!
  • Keys
    • 1.Bc6!
      • threat
        • 2.Qe3#
      • 1...Be6
        • 2.Sg6#
      • 1...Sc2
        • 2.Sd3#
      • 1...Re5
        • 2.Qg5#
      • 1...Sd1
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Scd5
        • 2.Rc4#
      • 1...Sbd5
        • 2.Bd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • S(c);N_GUARD::S(B)
    • S(c);N_GUARD::S(B),XS(c)
    • P(b);N_GUARD::S(B)
  • Tries
    • Try
      • B(E);
      • Threat
        • QAB1(J)
      • Vars
        • B(g);N_GUARD,S_CUTR(f)::S(K)
        • R(e);SBLOCK::QAB1(J)
        • S(a);N_GUARD::QAR1(J)
        • S(a);N_GUARD::QAR1(J),XS(a)
        • S(c);N_GUARD::S(B)
      • Refutation
        • R(f);
    • Try
      • B(E);
      • Threat
        • QAB1(J)
      • Vars
        • B(g);N_GUARD,S_CUTR(f)::S(K)
        • R(e);SBLOCK::QAB1(J)
        • S(a);N_GUARD::QAR1(J)
        • S(a);N_GUARD::QAR1(J),XS(a)
        • S(c);N_GUARD::S(B)
      • Refutation
        • R(f);
  • Actual
    • B(E);
    • Threat
      • QAB1(J)
    • Vars
      • B(g);N_GUARD::S(K)
      • S(c);N_GUARD::S(B)
      • R(e);SBLOCK::QAB1(J)
      • S(a);N_GUARD::QAR1(J)
      • S(a);N_GUARD::QAR1(J),XS(a)
      • S(a);OGATE::R(A)
      • S(c);OGATE::B(D)
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