MESON Chess Problem Database

Problem Display
PID: 277836 (8/3p4/2P2pp1/1BQ5/r3k2N/n5B1/r1bPN2K/3n4 w - - 0 1)

Amirov, Talip Khasanovich

2/3 HM., To Mat, 1961

8/3p4/2P2pp1/1BQ5/r3k2N/n5B1/r1bPN2K/3n4

#2

8 + 9

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Qxd4#
    • 1...Ra5
      • 2.Qd4#
    • 1...Ra6
      • 2.Qd4#
    • 1...Ra7
      • 2.Qd4#
    • 1...Ra8
      • 2.Qd4#
    • 1...Bb3
      • 2.d3#
    • 1...Sb2
      • 2.Sc3#
    • 1...Sf2
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...Se3
      • 2.Sc3#
    • 1...Sc4
      • 2.Qd4#
    • 1...f5
      • 2.Qe5#
    • 1...g5
      • 2.Qf5#
    • 1...dxc6
      • 2.Qxc6#
    • 1...d5
      • 2.Qe7#
  • Tries
    • 1.Bc4?
      • threat
        • 2.Qd4#
        • 2.Qe7#
        • 2.Qd5#
      • 1...Sxc4
        • 2.Qd4#
      • 1...dxc6
        • 2.Qd4#
        • 2.Qe7#
        • 2.Qxc6#
      • 1...Ra5
        • 2.Qd4#
      • 1...Sc3
        • 2.Sxc3#
        • 2.Qe3#
        • 2.Qd4#
        • 2.Qe7#
      • 1...Se3
        • 2.Sc3#
        • 2.Qxe3#
        • 2.Qd4#
        • 2.Qe7#
      • 1...Sb5
        • 2.Qe7#
        • 2.Qd5#
      • 1...d5
        • 2.Qd4#
        • 2.Qe7#
        • 2.Qxd5#
      • 1...d6
        • 2.Qd4#
        • 2.Qd5#
      • 1...Rxc4!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Qd5#
      • 1...dxc6
        • 2.Bxc6#
      • 1...d5
        • 2.Qxd5#
      • 1...Rd4
        • 2.Qe7#
      • 1...Bb3
        • 2.Bd3#
      • 1...Sc3
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 6
    • ADDED MATES = 0
    • REMOVED MATES = 9
  • Sets
    • R(e);N_GUARD::QAR1(G),XR(e)
    • R(e);N_GUARD::QAR1(G)
    • B(c);N_GUARD::P(A)
    • S(a);N_GUARD::S(B)
    • S(a);N_GUARD::S(B),XS(a)
    • S(d);S_CUTR(e)::QAR1(G)
    • P(g);N_GUARD::QAR1(G)
    • P(h);N_GUARD::QAB1(G)
    • P(i);OGATE,XP(H)::QAB(G),XP(i)
    • P(i);SBLOCK::QAR(G)
  • Tries
    • Try
      • B(F);
      • Threat
        • DUALS(3)
      • Vars
        • S(d);XB(F)::QAR1(G)
        • R(e);::QAR1(G)
      • Refutation
        • R(e);XB(F)
  • Actual
    • S(B);
    • Threat
      • QAB1(G)
    • Vars
      • P(i);OGATE,XP(H)::B(F),XP(i)
      • P(i);::QAB1(G),XP(i)
      • R(e);SBLOCK::QAR(G)
      • B(c);N_GUARD,P_PINP(A)::B(F)
      • S(a);N_GUARD::QAR1(G)
      • S(a);N_GUARD::QAR1(G),XS(a)
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