MESON Chess Problem Database

Problem Display
PID: 103506 (8/8/5Q2/2p3p1/2P1P1P1/4k3/3NbN2/4K3 w - - 0 1)

Ceriani, Luigi

Revista Romana de Sah, 1926

8/8/5Q2/2p3p1/2P1P1P1/4k3/3NbN2/4K3

#2

7 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Sf1#
    • 1...Bf1
      • 2.Sxf1#
    • 1...Bd3
      • 2.Sd1#
    • 1...Bf3
      • 2.Sf1#
    • 1...Bxc4
      • 2.Sxc4#
    • 1...Bxg4
      • 2.Sf1#
  • Tries
    • 1.Sd1+?
      • 1...Kd3
        • 2.Qc3#
      • 1...Bxd1!
  • Keys
    • 1.Qd6!
      • 1...Bxc4
        • 2.Sd1#
      • 1...Bxg4
        • 2.Sxg4#
      • 1...Bd1
        • 2.Sxd1#
      • 1...Bf1
        • 2.Sd1#
      • 1...Bd3
        • 2.Sd1#
      • 1...Bf3
        • 2.Sf1#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 4
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::S(B)
    • B(a);N_GUARD::S(B),XB(a)
    • B(a);N_GUARD,SBLOCK::S(C)
    • B(a);XP(D)::S(B),XB(a)
    • B(a);N_GUARD,XP(F)::S(B)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(G)
      • Refutation
        • B(a);XS(C)
  • Actual
    • Q(G);
    • Vars
      • B(a);N_GUARD,XP(D)::S(C)
      • B(a);XP(F)::S(C),XB(a)
      • B(a);N_GUARD::S(C),XB(a)
      • B(a);N_GUARD::S(C)
      • B(a);N_GUARD,SBLOCK::S(B)
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