MESON Chess Problem Database

Problem Display
PID: 180965 (4K3/5N1p/2N3p1/b6B/n4k2/6p1/1pQ2n2/4R3 w - - 0 1)

Weenink, Henri Gerard Maria

Tijdschrift vd NSB, 1918

4K3/5N1p/2N3p1/b6B/n4k2/6p1/1pQ2n2/4R3

#2

6 + 8

16055 HGM Weenink (Euwe/Niemeijer/Rueb/Trotsenburg) 1932

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qe4#
    • 1...Sh1
      • 2.Qe4#
    • 1...Sh3
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...Sg4
      • 2.Qe4#
    • 1...g2
      • 2.Qxf2#
  • Tries
    • 1.Qd2+?
      • 1...Kf5
        • 2.Qg5#
      • 1...Bxd2!
    • 1.Qe2?
      • threat
        • 2.Qf3#
        • 2.Qe5#
      • 1...Kf5
        • 2.Qf3#
        • 2.Qe5#
      • 1...Bc3
        • 2.Qf3#
      • 1...Bc7
        • 2.Qf3#
      • 1...Sd3
        • 2.Qf3#
        • 2.Qg4#
        • 2.Qe4#
      • 1...Se4
        • 2.Qf3#
        • 2.Qg4#
        • 2.Qxe4#
      • 1...Sg4
        • 2.Qxg4#
        • 2.Qe4#
      • 1...gxh5!
    • 1.Qc4+?
      • 1...Se4
        • 2.Qxe4#
      • 1...Kf5!
  • Keys
    • 1.Se7!
      • threat
        • 2.Sd5#
      • 1...gxh5
        • 2.Qf5#
      • 1...Sg4
        • 2.Qe4#
      • 1...g2
        • 2.Qxf2#
      • 1...Sd3
        • 2.Qc4#
      • 1...Se4
        • 2.Rxe4#
        • 2.Qxe4#
      • 1...Sc3
        • 2.Qd2#
      • 1...Sb6
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • S(b);N_GUARD::QAR1(B)
    • S(b);N_GUARD::QAR1(B),XS(b)
    • P(c);N_GUARD::QAR2(B),XS(b)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(e);OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • B(f);XQ(B)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);::QAR1(B)
      • Refutation
        • P(g);XB(C)
    • Try
      • Q(B);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAR1(B),XS(b)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • P(g);N_GUARD,XB(C)::QAR1(B)
      • S(b);N_GUARD::QAR1(B)
      • P(c);N_GUARD::QAR2(B),XS(b)
      • S(b);N_GUARD::QAR(B)
      • S(d);S_CUTB(f)::QAB(B)
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