MESON Chess Problem Database

Problem Display
PID: 155130 (5Q2/6p1/2K1k1b1/3pBp2/2pr1r2/7N/2Nn1n2/2b3q1 w - - 0 1)

Groeneveld, Cornelis

Rhein-Main Presse, 2000

5Q2/6p1/2K1k1b1/3pBp2/2pr1r2/7N/2Nn1n2/2b3q1

#2

5 + 12

15391 Problemschach-Jahrbuch (2000) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qe7#
    • 1...Bf7
      • 2.Qd6#
    • 1...Bh7
      • 2.Qe8#
    • 1...Be8+
      • 2.Qxe8#
  • Tries
    • 1.Sg5+?
      • 1...Kxe5
        • 2.Qd6#
        • 2.Qe7#
        • 2.Qxg7#
      • 1...Qxg5!
    • 1.Bd6?
      • threat
        • 2.Qe7#
      • 1...Qg5
        • 2.Sxg5#
      • 1...Be8+!
    • 1.Qxg7?
      • threat
        • 2.Qf6#
      • 1...Qg5
        • 2.Sxg5#
      • 1...Sde4
        • 2.Sxd4#
      • 1...Sfe4
        • 2.Sxf4#
      • 1...Sg4
        • 2.Sg5#
      • 1...Be8+!
  • Keys
    • 1.Bxg7!
      • threat
        • 2.Qf6#
      • 1...Be8+
        • 2.Qxe8#
      • 1...Qg5
        • 2.Sxg5#
      • 1...Bf7
        • 2.Qd6#
      • 1...Sde4
        • 2.Sxd4#
      • 1...Sfe4
        • 2.Sxf4#
      • 1...Sg4
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • K(j);P-FLIGHT,XB(C)::QAR2(E)
    • B(k);SBLOCK::QAR1(E)
    • B(k);N_GUARD::QAR2(E)
    • B(k);CHECK,N_GUARD::QAR2(E),XB(k)
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • Q(b);XS(B)
    • Try
      • B(C);
      • Threat
        • QAR1(E)
      • Vars
        • Q(b);N_GUARD::S(B),XQ(b)
      • Refutation
        • B(k);CHECK
    • Try
      • Q(E);XP(l)
      • Threat
        • QAR1(E)
      • Vars
        • Q(b);N_GUARD::S(B),XQ(b)
        • S(c);S_CUTR(g)::S(A),XR(f)
        • S(d);S_CUTR(f)::S(B),XR(g)
        • S(d);S_CUTQ(b)::S(B)
      • Refutation
        • B(k);CHECK
  • Actual
    • B(C);XP(l)
    • Threat
      • QAR1(E)
    • Vars
      • B(k);CHECK,N_GUARD::QAR2(E),XB(k)
      • Q(b);N_GUARD::S(B),XQ(b)
      • B(k);SBLOCK::QAR1(E)
      • S(c);S_CUTR(g)::S(A),XR(f)
      • S(d);S_CUTR(f)::S(B),XR(g)
      • S(d);S_CUTQ(b)::S(B)
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