MESON Chess Problem Database

Problem Display
PID: 153254 (5r2/1PB2b2/k1B5/1N4n1/1pP1P3/N7/2P4p/3Rn2K w - - 0 1)

Amirov, Talip Khasanovich

Freie Presse, 1984

5r2/1PB2b2/k1B5/1N4n1/1pP1P3/N7/2P4p/3Rn2K

#2

10 + 7

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.bxa8Q#
      • 2.bxa8R#
    • 1...Rc8
      • 2.bxc8Q#
      • 2.bxc8B#
    • 1...Be8
      • 2.b8S#
  • Tries
    • 1.Rd6?
      • threat
        • 2.Bd5#
      • 1...Sxe4
        • 2.Bxe4#
      • 1...Bd5
        • 2.Bxd5#
      • 1...Be8
        • 2.b8S#
      • 1...Rd8!
    • 1.b8Q?
      • threat
        • 2.Bb7#
        • 2.Qa7#
        • 2.Qb6#
        • 2.Qb7#
      • 1...Bd5
        • 2.Qa7#
        • 2.Qb6#
        • 2.Qb7#
      • 1...Rxb8!
  • Keys
    • 1.Ra1!
      • threat
        • 2.Sb1#
      • 1...Bxc4
        • 2.Sxc4#
      • 1...Sxc2
        • 2.Sxc2#
      • 1...bxa3
        • 2.Rxa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(g);OGATE::PXR(g)=Q
    • B(f);S_CUTR(g)::P=S
  • Tries
    • Try
      • R(A);
      • Threat
        • R(A)+B(H)
      • Vars
        • S(d);OGATE,XP(F)::R(A)+B(H),XS(d)
        • B(f);P_PINP(F)::R(A)+B(H),XB(f)
        • B(f);S_CUTR(g)::P=S
      • Refutation
        • R(g);
    • Try
      • P(I);
      • Threat
        • DUALS(4)
      • Refutation
        • R(g);XQ(I)
  • Actual
    • R(A);
    • Threat
      • R(A)+S(D)
    • Vars
      • B(f);XP(E)::R(A)+S(D),XB(f)
      • S(a);XP(C)::R(A)+S(D),XS(a)
      • P(c);OGATE,P_SPINP(c),XS(D)::R(A),XP(c)
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