MESON Chess Problem Database

Problem Display
PID: 120759 (k1n1r3/8/K1b1Q3/3NB3/3nq3/8/8/8 w - - 0 1)

Vogel, Peter

Source?, 0000

k1n1r3/8/K1b1Q3/3NB3/3nq3/8/8/8

#2

4 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re7
      • 2.Qxc8#
    • 1...Sc2
      • 2.Qxc6#
    • 1...Se2
      • 2.Qxc6#
    • 1...Sb3
      • 2.Qxc6#
    • 1...Sf3
      • 2.Qxc6#
    • 1...Sb5
      • 2.Qxc6#
    • 1...Sf5
      • 2.Qxc6#
    • 1...Sb6
      • 2.Sxb6#
    • 1...Sa7
      • 2.Sb6#
    • 1...Se7
      • 2.Sb6#
  • Keys
    • 1.Qxc8+!
      • 1...Rxc8
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • R(f);N_GUARD::QAR2(D),XS(e)
    • S(a);N_GUARD::QAB(D),XB(c)
    • S(e);N_GUARD::S(A),XS(e)
    • S(e);N_GUARD::S(A)
  • Actual
    • Q(D);CHECK,XS(e)
    • Vars
      • R(f);XQ(D)::S(A)
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