MESON Chess Problem Database

Problem Display
PID: 223266 (8/2p5/Q3p1K1/3k4/6N1/2P5/3N2P1/8 w - - 0 1)

Taverner, Thomas

English Mechanic and World of Science, 1886

(First published on Fri Jan 1 1886)

8/2p5/Q3p1K1/3k4/6N1/2P5/3N2P1/8

#2

6 + 3

6490 yacpdb 2020
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sb3?
      • 1...Ke4
        • 2.Qc4#
      • 1...c6
        • 2.Qd3#
      • 1...e5
        • 2.Sf6#
      • 1...c5!
    • 1.Se3+?
      • 1...Kc5
        • 2.Sb3#
        • 2.Se4#
      • 1...Ke5!
    • 1.Sf6+?
      • 1...Kc5
        • 2.Sb3#
        • 2.Sde4#
      • 1...Ke5!
    • 1.Qb5+?
      • 1...c5
        • 2.Qd7#
      • 1...Kd6!
  • Keys
    • 1.Se4!
      • 1...Kxe4
        • 2.Qc4#
      • 1...e5
        • 2.Sgf6#
      • 1...c5
        • 2.Sef6#
      • 1...c6
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
        • P(c);SBLOCK::QAR2(E)
        • P(b);SBLOCK::S(D)
      • Refutation
        • P(c);
    • Try
      • S(D);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(D);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • P(c);P_SPINP(c),SBLOCK::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(A);
    • Vars
      • K(a);S_FLIGHT,XS(A)::QAR2(E)
      • P(b);SBLOCK::S(D)
      • P(c);SBLOCK::S(A)
      • P(c);SBLOCK::QAR2(E)
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