MESON Chess Problem Database

Problem Display
PID: 96863 (8/2q5/3Np3/4k1P1/Q2b2K1/8/8/7B w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

200 Assorted Problems (Wenman), 1945

8/2q5/3Np3/4k1P1/Q2b2K1/8/8/7B

#2

5 + 4

6490 yacpdb 2009
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qa5
      • 2.Sc4#
      • 2.Sf7#
    • 1...Qb6
      • 2.Sc4#
      • 2.Sf7#
    • 1...Qb8
      • 2.Sc4#
      • 2.Sf7#
    • 1...Qd8
      • 2.Sc4#
      • 2.Sf7#
    • 1...Qc1
      • 2.Sf7#
    • 1...Qc2
      • 2.Sf7#
    • 1...Qc3
      • 2.Sf7#
    • 1...Qc4
      • 2.Sxc4#
      • 2.Sf7#
    • 1...Qc5
      • 2.Sf7#
    • 1...Qc6
      • 2.Sf7#
    • 1...Qa7
      • 2.Sc4#
    • 1...Qb7
      • 2.Sc4#
    • 1...Qd7
      • 2.Sc4#
    • 1...Qe7
      • 2.Sc4#
    • 1...Qf7
      • 2.Sc4#
      • 2.Sxf7#
    • 1...Qg7
      • 2.Sc4#
    • 1...Qh7
      • 2.Sc4#
    • 1...Qc8
      • 2.Sf7#
    • 1...Ba1
      • 2.Qf4#
    • 1...Bg1
      • 2.Qf4#
    • 1...Bb2
      • 2.Qf4#
    • 1...Bf2
      • 2.Qf4#
    • 1...Bc3
      • 2.Qf4#
    • 1...Bc5
      • 2.Qf4#
    • 1...Bb6
      • 2.Qf4#
    • 1...Ba7
      • 2.Qf4#
  • Keys
    • 1.Qd7!
      • threat
        • 2.Sf7#
      • 1...Qxd6
        • 2.Qg7#
      • 1...Qxd7
        • 2.Sc4#

Anticipated by 24910(1930)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 19
  • Sets
    • Q(d);N_GUARD::S(E)
    • Q(d);N_GUARD,P_PINP(D)::S(E)
    • B(a);OGATE::QAB1(B)
  • Actual
    • Q(B);
    • Threat
      • S(E)
    • Vars
      • Q(d);N_GUARD,SBLOCK,XS(E)::QAB(B)
      • Q(d);N_GUARD,XQ(B)::S(E)
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