MESON Chess Problem Database

Problem Display
PID: 268397 (3B2b1/K7/R3p3/4k1pn/2PN2Q1/2P1b1pB/8/2nRr3 w - - 0 1)

Chicco, Adriano

2nd HM., Jornal Portugues TT, 1932

3B2b1/K7/R3p3/4k1pn/2PN2Q1/2P1b1pB/8/2nRr3

#2

9 + 9

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Sf3#
    • 1...Bxd4+
      • 2.Qxd4#
      • 2.cxd4#
    • 1...Bh7
      • 2.Rxe6#
    • 1...Sf6
      • 2.Bc7#
  • Tries
    • 1.Rxe1?
      • threat
        • 2.Rxe3#
      • 1...Bh7
        • 2.Rxe6#
      • 1...Sf6
        • 2.Bc7#
      • 1...Se2!
    • 1.Qf3?
      • threat
        • 2.Bc7#
      • 1...Bxd4+
        • 2.cxd4#
      • 1...Bf4
        • 2.Sc6#
      • 1...Sf4!
    • 1.Qxe6+?
      • 1...Kf4
        • 2.Bc7#
        • 2.Qf5#
      • 1...Bxe6!
    • 1.Qxg5+?
      • 1...Ke4
        • 2.Bg2#
      • 1...Bxg5!
  • Keys
    • 1.Bg2!
      • threat
        • 2.Qe4#
      • 1...Bxd4+
        • 2.cxd4#
      • 1...Bg1
        • 2.Qxg5#
      • 1...Bd2
        • 2.Sf3#
      • 1...Bf2
        • 2.Qxg5#
      • 1...Bf4
        • 2.Sc6#
      • 1...Bh7
        • 2.Rxe6#
      • 1...Sf4
        • 2.Qxg5#
      • 1...Sf6
        • 2.Bc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(c);N_PINS(E)::S(E)
    • B(i);N_GUARD::R1(G),XP(h)
    • S(g);SBLOCK::B(I)
  • Tries
    • Try
      • R(A);P_PINB(c),XR(b)
      • Threat
        • R(A),XB(c)
      • Vars
        • B(i);N_GUARD::R1(G),XP(h)
        • S(g);SBLOCK::B(I)
      • Refutation
        • S(a);N_SPINB(c)
    • Try
      • Q(F);
      • Threat
        • B(I)
      • Vars
        • B(c);CHECK,OGATE,XS(E)::P(B),XB(c)
        • B(c);N_PINS(E)::S(E)
      • Refutation
        • S(g);
    • Try
      • Q(F);CHECK,XP(h)
      • Refutation
        • B(i);XQ(F)
    • Try
      • Q(F);CHECK,XP(f)
      • Vars
        • K(e);P-FLIGHT,S_CUTB(c)::B(C)
      • Refutation
        • B(c);N_PINS(E),XQ(F)
  • Actual
    • B(C);
    • Threat
      • QAR1(F)
    • Vars
      • B(c);CHECK,OGATE,XS(E)::P(B),XB(c)
      • B(c);N_GUARD::QAR2(F),XP(f)
      • B(c);N_PINS(E)::S(E)
      • B(i);N_GUARD::R1(G),XP(h)
      • S(g);S_CUTB(c)::QAR2(F),XP(f)
      • S(g);SBLOCK::B(I)
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Developed and maintained by Brian Stephenson.
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