MESON Chess Problem Database

Problem Display
PID: 204374 (3B4/6K1/2R1N2p/R1p1pk2/3b4/q1pN1P1n/2B5/8 w - - 0 1)

Mari, Alberto

British Chess Magazine, 1925

3B4/6K1/2R1N2p/R1p1pk2/3b4/q1pN1P1n/2B5/8

#2

8 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Sc1#
      • 2.Se1#
      • 2.Sb2#
      • 2.Sf2#
      • 2.Sb4#
      • 2.Sdf4#
      • 2.Sxe5#
      • 2.Sxd4#
    • 1...e4+
      • 2.Sxd4#
  • Tries
    • 1.Kh7?
      • threat
        • 2.Sg7#
      • 1...e4
        • 2.Sxd4#
      • 1...Sg5+!
    • 1.Kh8?
      • threat
        • 2.Sg7#
      • 1...e4+
        • 2.Sxd4#
      • 1...Kg6!
    • 1.Sxd4+?
      • 1...cxd4
        • 2.Rxe5#
      • 1...exd4!
  • Keys
    • 1.Kf8!
      • threat
        • 2.Sg7#
      • 1...c4+
        • 2.Sb4#
      • 1...Kg6
        • 2.Sdf4#
      • 1...e4
        • 2.Sxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(f);CHECK,N_GUARD,P_SPINP(e)::S(F),XB(d)
  • Tries
    • Try
      • K(G);P-FLIGHT
      • Threat
        • S(F)
      • Vars
        • P(f);N_GUARD,P_SPINP(e)::S(F),XB(d)
      • Refutation
        • S(c);CHECK
    • Try
      • K(G);S_FLIGHT
      • Threat
        • S(F)
      • Vars
        • P(f);CHECK,N_GUARD,P_SPINP(e)::S(F),XB(d)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • S(F);CHECK,XB(d)
      • Vars
        • P(e);OGATE,P_SPINP(f),XS(F)::R1(D),XP(f)
      • Refutation
        • P(f);P_SPINP(e),XS(F)
  • Actual
    • K(G);S_FLIGHT
    • Threat
      • S(F)
    • Vars
      • P(e);CHECK,P_SPINP(f)::B(A)+S(B)
      • K(g);S_FLIGHT::B(A)+S(B),DCHECK
      • P(f);N_GUARD,P_SPINP(e)::S(F),XB(d)
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