MESON Chess Problem Database

Problem Display
PID: 267659 (3r4/2pQ2p1/3b2Kn/2p1N1nR/b1N1k1p1/4B3/5P2/3R1Br1 w - - 0 1)

Chicco, Adriano

4th Prize, Echec et Mat, 1947

3r4/2pQ2p1/3b2Kn/2p1N1nR/b1N1k1p1/4B3/5P2/3R1Br1

#2

9 + 11

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd1
      • 2.Qc6#
    • 1...Bc2
      • 2.Qc6#
    • 1...Bb3
      • 2.Qc6#
    • 1...Bc6
      • 2.Qxc6#
    • 1...Bxe5
      • 2.Sd2#
    • 1...Be7
      • 2.Bd3#
    • 1...Bf8
      • 2.Bd3#
    • 1...Sf5
      • 2.Qxf5#
    • 1...Sf7
      • 2.Qf5#
    • 1...Sg8
      • 2.Qf5#
  • Tries
    • 1.Sxd6+?
      • 1...Kxe5
        • 2.Qe7#
      • 1...cxd6!
    • 1.Sf3?
      • threat
        • 2.Sxg5#
      • 1...Kxf3
        • 2.Sd2#
      • 1...Bxd1
        • 2.Qc6#
      • 1...Sxf3
        • 2.Bd3#
      • 1...Bf4
        • 2.Sfd2#
        • 2.Scd2#
      • 1...Be7
        • 2.Sfd2#
        • 2.Scd2#
      • 1...Sh3
        • 2.Sfd2#
        • 2.Scd2#
      • 1...Se6
        • 2.Sfd2#
        • 2.Scd2#
      • 1...Sgf7
        • 2.Sfd2#
        • 2.Scd2#
      • 1...Sh7
        • 2.Sfd2#
        • 2.Scd2#
      • 1...Shf7
        • 2.Qf5#
      • 1...gxf3!
  • Keys
    • 1.Sf7!
      • threat
        • 2.Sxg5#
      • 1...Kf3
        • 2.Sd2#
        • 2.Sxg5#
      • 1...Bxd1
        • 2.Qc6#
      • 1...Sgxf7
        • 2.Sd2#
      • 1...Shxf7
        • 2.Qf5#
      • 1...Bf4
        • 2.Sd2#
      • 1...Be7
        • 2.Sd2#
      • 1...Sf3
        • 2.Bd3#
      • 1...Sh3
        • 2.Sd2#
      • 1...Se6
        • 2.Sd2#
      • 1...Sh7
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 7
  • Sets
    • B(b);N_GUARD,XR(A)::QAB(I)
    • B(b);N_GUARD::QAB(I)
    • B(b);N_GUARD::QAB(I),XB(b)
    • B(g);SBLOCK,XS(F)::S(E)
    • B(g);::B(B)
    • S(h);N_GUARD::QAB1(I),XS(h)
    • S(h);N_GUARD::QAB1(I)
  • Tries
    • Try
      • S(E);CHECK,XB(g)
      • Vars
        • K(c);P-FLIGHT,P_SPINS(f),S_CUTP(i),S_CUTR(k),XS(F)::QAR2(I)
      • Refutation
        • P(i);XS(E)
    • Try
      • S(F);
      • Threat
        • S(F),XS(f)
      • Vars
        • K(c);N_GUARD,S_FLIGHT,XS(F)::S(E)
        • B(b);N_GUARD,XR(A)::QAB(I)
        • S(f);SBLOCK,XS(F)::B(B)
        • S(h);N_GUARD::QAB1(I)
      • Refutation
        • P(d);XS(F)
  • Actual
    • S(F);
    • Threat
      • S(F),XS(f)
    • Vars
      • B(b);N_GUARD,XR(A)::QAB(I)
      • S(f);XS(F)::S(E)
      • S(h);N_GUARD,XS(F)::QAB1(I)
      • B(g);::S(E)
      • S(f);SBLOCK::B(B)
      • S(f);::S(E)
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