MESON Chess Problem Database

Problem Display
PID: 102765 (8/8/4p1N1/3kP3/1P1Nrp2/1P2p3/1K2n3/7Q w - - 0 1)

Wynne, Frank Wilson

Revue d'Echecs, 1903

8/8/4p1N1/3kP3/1P1Nrp2/1P2p3/1K2n3/7Q

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qd1#
  • Tries
    • 1.Qh7?
      • threat
        • 2.Qd7#
      • 1...Kxd4
        • 2.Qd7#
      • 1...Rxd4
        • 2.Qb7#
      • 1...Rxe5!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qd8#
      • 1...Kxd4
        • 2.Qd8#
      • 1...Rxd4
        • 2.Qa8#
      • 1...Rxe5
        • 2.Qxe5#
      • 1...Sxd4
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(e);N_SPINR(c),OGATEB,P-FLIGHT,XS(E)::QAR(A)
  • Tries
    • Try
      • Q(A);N_PINR(c)
      • Threat
        • QAR2(A)
      • Vars
        • K(e);P-FLIGHT,XS(E)::QAR(A)
        • R(c);SBLOCK,XS(E)::QAB(A)
      • Refutation
        • R(c);XP(F)
  • Actual
    • Q(A);N_PINR(c)
    • Threat
      • QAR(A)
    • Vars
      • K(e);P-FLIGHT,XS(E)::QAR(A)
      • R(c);SBLOCK,XS(E)::QAB(A)
      • R(c);OGATE,XP(F)::QAR1(A),XR(c)
      • S(a);SBLOCK,XS(E)::S(G)
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