MESON Chess Problem Database

Problem Display
PID: 224432 (4r3/2p1p3/2PP4/4k1P1/1PQ1B3/2n1P3/1N4K1/8 w - - 0 1)

Anonymous

Wilkes-Barre Record, 1888

(First published on Thu Nov 1 1888)

4r3/2p1p3/2PP4/4k1P1/1PQ1B3/2n1P3/1N4K1/8

#2

9 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.Qd5#
    • 1...Sd1
      • 2.Qd5#
    • 1...Sa2
      • 2.Qd5#
    • 1...Se2
      • 2.Qd5#
    • 1...Sa4
      • 2.Qd5#
    • 1...Sb5
      • 2.Qd5#
    • 1...Sd5
      • 2.Qxd5#
    • 1...cxd6
      • 2.Sd3#
    • 1...exd6
      • 2.Sd3#
    • 1...e6
      • 2.Qd4#
  • Keys
    • 1.Qf7!
      • 1...Kxe4
        • 2.Qe6#
      • 1...Kxd6
        • 2.Sc4#
      • 1...Sxe4
        • 2.Sc4#
      • 1...cxd6
        • 2.Qf5#
      • 1...exd6
        • 2.Qxe8#
        • 2.Qf5#
      • 1...Ra8
        • 2.Qxe7#
      • 1...Rb8
        • 2.Qxe7#
      • 1...Rc8
        • 2.Qxe7#
      • 1...Rd8
        • 2.Qxe7#
      • 1...Rf8
        • 2.Qxe7#
      • 1...Rg8
        • 2.Qxe7#
      • 1...Rh8
        • 2.Qxe7#
      • 1...Sb1
        • 2.Qd5#
      • 1...Sd1
        • 2.Qd5#
      • 1...Sa2
        • 2.Qd5#
      • 1...Se2
        • 2.Qd5#
      • 1...Sa4
        • 2.Qd5#
      • 1...Sb5
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...e6
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 10
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD::QAR1(E)
    • S(a);N_GUARD::QAR1(E),XS(a)
    • P(c);SBLOCK,XP(I)::S(A)
    • P(d);SBLOCK,XP(I)::S(A)
    • P(d);SBLOCK::QAB1(E)
  • Actual
    • Q(E);
    • Vars
      • K(b);P-FLIGHT,XB(F)::QAR2(E)
      • K(b);S_FLIGHT,XP(I)::S(A)
      • S(a);SBLOCK,XB(F)::S(A)
      • P(c);SBLOCK,XP(I)::QAR1(E)
      • R(e);N_GUARD::QAR2(E),XP(d)
      • R(e);N_GUARD,P_PINP(G)::QAR2(E),XP(d)
      • S(a);N_GUARD::QAR1(E)
      • S(a);N_GUARD::QAR1(E),XS(a)
      • P(d);SBLOCK::QAB1(E)
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Developed and maintained by Brian Stephenson.
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