MESON Chess Problem Database

Problem Display
PID: 269958 (3b1N2/2qb2n1/1p1r2p1/2P4p/R3B2k/7p/1Q4RB/K2n4 w - - 0 1)

Chicco, Adriano

Comm., Sports Referee, 1932

(First published on Sat Nov 12 1932)

3b1N2/2qb2n1/1p1r2p1/2P4p/R3B2k/7p/1Q4RB/K2n4

#2

8 + 11

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Sxg6#
    • 1...Rd3
      • 2.Sxg6#
    • 1...Rd4
      • 2.Sxg6#
    • 1...Rd5
      • 2.Sxg6#
    • 1...Be6
      • 2.Sxg6#
    • 1...Bf6
      • 2.Sxg6#
    • 1...Sf2
      • 2.Qxf2#
    • 1...Sc3
      • 2.Qf2#
    • 1...Se3
      • 2.Qf2#
    • 1...Se6
      • 2.Sxg6#
  • Tries
    • 1.Bd5+?
      • 1...Bxa4
        • 2.Qd4#
        • 2.Qb4#
      • 1...Bg4!
    • 1.Bf5+?
      • 1...Rd4
        • 2.Sxg6#
      • 1...Bxa4!
    • 1.Bc6+?
      • 1...Rd4
        • 2.Sxg6#
      • 1...Bg4!
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qg3#
      • 1...Bg4
        • 2.Bg3#
      • 1...Rd2
        • 2.Sxg6#
      • 1...Rd3
        • 2.Sxg6#
      • 1...Rd4
        • 2.Sxg6#
      • 1...Rd5
        • 2.Sxg6#
      • 1...Rc6
        • 2.Bf5#
      • 1...Re6
        • 2.Bc6#
      • 1...Rf6
        • 2.Qg5#
      • 1...Bf6
        • 2.Sxg6#
      • 1...Sf5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • R(f);N_GUARD::S(H),XP(g)
    • B(i);S_CUTR(f)::S(H),XP(g)
    • B(k);P_PINQ(B),S_CUTR(f)::S(H),XP(g)
    • S(a);N_GUARD::QAB(B),XS(a)
    • S(a);N_GUARD::QAB(B)
    • S(j);S_CUTR(f)::S(H),XP(g)
  • Tries
    • Try
      • B(F);CHECK
      • Refutation
        • B(i);P_SPINB(i)
    • Try
      • B(F);CHECK
      • Vars
        • R(f);P_SPINR(f)::S(H),XP(g)
      • Refutation
        • B(i);XR(E)
    • Try
      • B(F);CHECK
      • Vars
        • R(f);P_SPINR(f)::S(H),XP(g)
      • Refutation
        • B(i);P_SPINB(i)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • B(i);SBLOCK::B(D)
      • R(f);N_GUARD::S(H),XP(g)
      • R(f);N_GUARD,S_CUTB(i)::R(E)+B(F)
      • R(f);S_CUTB(k)::QAB1(B)
      • B(k);P_PINQ(B),S_CUTR(f)::S(H),XP(g)
      • S(j);S_CUTB(i)::QAR2(B)
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