MESON Chess Problem Database

Problem Display
PID: 51515 (8/p2n2b1/2N5/Pp1N4/2k1P3/2p2Q2/K4B2/5b2 w - - 0 1)

Amirov, Talip Khasanovich

The Guardian, 1962

8/p2n2b1/2N5/Pp1N4/2k1P3/2p2Q2/K4B2/5b2

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Qxe2#
    • 1...Bg2
      • 2.Qe2#
    • 1...Bh3
      • 2.Qe2#
    • 1...Bh6
      • 2.Qxc3#
    • 1...Bf8
      • 2.Qxc3#
    • 1...Se5
      • 2.Qxc3#
    • 1...Sf6
      • 2.Se5#
      • 2.Qxc3#
    • 1...c2
      • 2.Qb3#
  • Tries
    • 1.Se5+?
      • 1...Sxe5
        • 2.Qxc3#
      • 1...Bxe5!
    • 1.Bd4?
      • threat
        • 2.Qxf1#
        • 2.Qxc3#
      • 1...b4
        • 2.Qxf1#
      • 1...Be2
        • 2.Qxe2#
        • 2.Qxc3#
      • 1...Bg2
        • 2.Qe2#
        • 2.Qxc3#
      • 1...Bd3
        • 2.Se3#
      • 1...Bh3
        • 2.Qe2#
        • 2.Qxc3#
      • 1...Sc5
        • 2.Qxc3#
      • 1...Se5
        • 2.Qxc3#
      • 1...c2
        • 2.Qxf1#
        • 2.Qb3#
        • 2.Qc3#
      • 1...Bxd4!
    • 1.Bxa7?
      • threat
        • 2.Qxf1#
      • 1...Be2
        • 2.Qxe2#
      • 1...Bg2
        • 2.Qe2#
      • 1...Bd3
        • 2.Se3#
      • 1...Bh3
        • 2.Qe2#
      • 1...Sc5
        • 2.Sb6#
      • 1...Se5
        • 2.Qxc3#
      • 1...Sb6!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qxf1#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Be2
        • 2.Qxe2#
      • 1...Bg2
        • 2.Qe2#
      • 1...Bd3
        • 2.Qb3#
      • 1...Bh3
        • 2.Qe2#
      • 1...Sc5
        • 2.Se3#
      • 1...Se5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(a);N_GUARD::QAB(C),XB(a)
    • B(a);N_GUARD::QAB(C)
    • B(g);N_GUARD::QAR1(C),XP(b)
    • S(f);S_CUTB(g)::QAR1(C),XP(b)
    • P(b);OGATE::QAB1(C)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • S(f);XS(G)::QAR1(C),XP(b)
      • Refutation
        • B(g);XS(G)
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);::QAB(C),XB(a)
        • B(a);SBLOCK::S(F)
        • S(f);::QAR1(C),XP(b)
      • Refutation
        • B(g);XB(B)
    • Try
      • B(B);XP(e)
      • Threat
        • QAB(C),XB(a)
      • Vars
        • B(a);N_GUARD::QAB(C),XB(a)
        • B(a);N_GUARD::QAB(C)
        • B(a);SBLOCK::S(F)
        • S(f);N_GUARD,SBLOCK::S(F)
        • S(f);S_CUTB(g)::QAR1(C),XP(b)
      • Refutation
        • S(f);
  • Actual
    • Q(C);
    • Threat
      • QAB(C),XB(a)
    • Vars
      • B(g);N_GUARD::QAR1(C),XB(g)
      • B(a);N_GUARD::QAB(C),XB(a)
      • B(a);N_GUARD::QAB(C)
      • B(a);SBLOCK::QAB1(C)
      • S(f);SBLOCK::S(F)
      • S(f);S_CUTB(g)::QAR1(C)
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