MESON Chess Problem Database

Problem Display
PID: 16246 (8/5Q2/2PP4/B7/3k2N1/3NpPn1/2P1b3/Kn2R3 w - - 0 1)

Groeneveld, Cornelis

The Problemist, 2000

8/5Q2/2PP4/B7/3k2N1/3NpPn1/2P1b3/Kn2R3

#2

10 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Bb6#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Qd5#
      • 1...Kc5
        • 2.Qd5#
      • 1...Bc4
        • 2.Qa7#
      • 1...Sc3
        • 2.Bb6#
      • 1...Bxf3!
    • 1.Sge5?
      • threat
        • 2.Qc4#
      • 1...Sd2
        • 2.c3#
      • 1...Sa3
        • 2.c3#
      • 1...Bxd3!
    • 1.Sf6?
      • threat
        • 2.Qd5#
      • 1...Sc3
        • 2.Bb6#
      • 1...Bxf3!
    • 1.Qf4+?
      • 1...Se4
        • 2.Qxe4#
      • 1...Kd5!
    • 1.Qa7+?
      • 1...Kc4
        • 2.Qc5#
      • 1...Kd5!
  • Keys
    • 1.Sxe3!
      • threat
        • 2.Qa7#
      • 1...Kxe3
        • 2.Qf4#
      • 1...Bxd3
        • 2.Qd5#
      • 1...Bxf3
        • 2.Qc4#
      • 1...Se4
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(a);SBLOCK::B(G)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(J)
      • Vars
        • K(e);S_FLIGHT::QAR1(J)
        • B(b);SBLOCK::QAB(J)
        • S(a);SBLOCK::B(G)
      • Refutation
        • B(b);XP(E)
    • Try
      • S(F);
      • Threat
        • QAR1(J)
      • Vars
        • S(a);N_GUARD::P(C)
      • Refutation
        • B(b);XS(D)
    • Try
      • S(F);
      • Threat
        • QAR1(J)
      • Vars
        • S(a);SBLOCK::B(G)
      • Refutation
        • B(b);XP(E)
    • Try
      • Q(J);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::QAR1(J),XS(d)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(J);CHECK
      • Vars
        • K(e);P-FLIGHT::QAR1(J)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • S(F);XP(c)
    • Threat
      • QAB(J)
    • Vars
      • K(e);P_SPINB(b),S_FLIGHT,XS(F)::QAB1(J)
      • B(b);XS(D)::QAR1(J)
      • B(b);XP(E)::QAR1(J)
      • S(d);N_GUARD::S(F)
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