MESON Chess Problem Database

Problem Display
PID: 101629 (2B5/7N/8/4p1Bp/4P3/1Q3pk1/2P4p/7K w - - 0 1)

Jada, Faud Emile

diagrammes, 1979

2B5/7N/8/4p1Bp/4P3/1Q3pk1/2P4p/7K

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qg8?
      • 1...h4
        • 2.Be3#
      • 1...f2
        • 2.Qb3#
      • 1...Kf2!
    • 1.Qd3?
      • 1...Kf2
        • 2.Bh4#
      • 1...h4!
    • 1.Qb6?
      • 1...f2
        • 2.Qe3#
        • 2.Qb3#
      • 1...h4!
  • Keys
    • 1.Be3!
      • 1...Kh4
        • 2.Bf2#
      • 1...f2
        • 2.Bg5#
      • 1...h4
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);N_PINP(b)
      • Vars
        • P(e);SBLOCK::QAR(C)+B(E)
        • P(b);OGATEB,SBLOCK::QAR(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::B(E)
      • Refutation
        • P(e);
    • Try
      • Q(C);N_PINP(b)
      • Refutation
        • P(e);
  • Actual
    • B(E);N_PINP(b)
    • Vars
      • K(c);S_FLIGHT::B(E)
      • P(b);OGATEB,SBLOCK::QAR(C)+B(E)
      • P(e);SBLOCK::QAR(C)
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