MESON Chess Problem Database

Problem Display
PID: 240031 (6b1/1pb3r1/1pN5/3k4/2R2P2/BKP2n2/4R3/6nQ w - - 0 1)

Mosiashvili, Givi

3rd HM., 64 Shakhmatnoe obozrenie, 1988

6b1/1pb3r1/1pN5/3k4/2R2P2/BKP2n2/4R3/6nQ

#2

8 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg2
      • 2.Se7#
    • 1...Rg3
      • 2.Se7#
    • 1...Rg4
      • 2.Se7#
    • 1...Rg5
      • 2.Se7#
    • 1...Rg6
      • 2.Se7#
    • 1...Re7
      • 2.Sxe7#
    • 1...Be5
      • 2.Rxe5#
    • 1...Bd8
      • 2.Re5#
    • 1...Be6
      • 2.Rd2#
    • 1...Bf7
      • 2.Se7#
    • 1...Sh3
      • 2.Qxf3#
    • 1...bxc6
      • 2.Rd4#
  • Tries
    • 1.Sd8?
      • threat
        • 2.Rd2#
        • 2.Rd4#
      • 1...Bxf4
        • 2.Rd4#
      • 1...Bxd8
        • 2.Re5#
      • 1...Sxe2
        • 2.Qxf3#
      • 1...Be5
        • 2.Rxe5#
      • 1...Bh7
        • 2.Rd4#
      • 1...Rg2!
    • 1.f5?
      • threat
        • 2.Rd2#
      • 1...Sxe2
        • 2.Qxf3#
      • 1...bxc6
        • 2.Rd4#
      • 1...Rg2
        • 2.Se7#
      • 1...Rg4
        • 2.Se7#
      • 1...Be5
        • 2.Rxe5#
      • 1...Bf4!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Sb4#
      • 1...Sd2+
        • 2.Rxd2#
      • 1...Sd4+
        • 2.Rxd4#
      • 1...bxc6
        • 2.Qxc6#
      • 1...Rg6
        • 2.Se7#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Be6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 9
  • Sets
    • R(g);N_GUARD,N_SPINS(b)::S(H)
    • R(g);N_GUARD::S(H)
    • R(g);N_GUARD::S(H),XR(g)
    • B(f);N_GUARD::R1(B),XB(f)
    • B(f);N_GUARD::R1(B)
    • B(h);SBLOCK::R(B)
    • B(h);S_CUTR(g)::S(H)
    • S(a);N_GUARD::QAB(A),XS(b)
    • P(e);SBLOCK,XS(H)::R1(F)
  • Tries
    • Try
      • S(H);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);XP(G)::R1(F)
        • B(f);N_GUARD,XS(H)::R1(B)
        • S(a);N_GUARD,XR(B)::QAB(A),XS(b)
        • B(f);N_GUARD::R1(B),XB(f)
        • B(h);::R1(F)
      • Refutation
        • R(g);N_SPINS(b)
    • Try
      • P(G);
      • Threat
        • R(B)
      • Vars
        • S(a);N_GUARD,XR(B)::QAB(A),XS(b)
        • P(e);SBLOCK,XS(H)::R1(F)
        • R(g);N_GUARD,N_SPINS(b)::S(H)
        • R(g);N_GUARD::S(H)
        • B(f);N_GUARD::R1(B),XB(f)
      • Refutation
        • B(f);
  • Actual
    • Q(A);N_PINS(b)
    • Threat
      • S(H)
    • Vars
      • S(b);CHECK,N_GUARD::R(B),XS(b)
      • S(b);CHECK,N_GUARD::R1(F),XS(b)
      • P(e);OGATE,XS(H)::QAB1(A),XP(e)
      • R(g);N_GUARD::S(H)
      • B(f);N_GUARD::QAR1(A),XB(f)
      • B(h);N_GUARD::QAB1(A),XB(h)
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