MESON Chess Problem Database

Problem Display
PID: 152678 (2b1r3/1p6/1p1Q4/3pp3/3n1n2/3PkNB1/4PR2/3KN3 w - - 0 1)

Mosiashvili, Givi

StrateGems, 2011

2b1r3/1p6/1p1Q4/3pp3/3n1n2/3PkNB1/4PR2/3KN3

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rd8
      • 2.Qxe5#
    • 1...Rf8
      • 2.Qxe5#
    • 1...Rg8
      • 2.Qxe5#
    • 1...Rh8
      • 2.Qxe5#
    • 1...Be6
      • 2.Qxe5#
    • 1...Sc2
      • 2.Sxc2#
    • 1...Sb3
      • 2.Sc2#
    • 1...Sxf3
      • 2.Sc2#
    • 1...Sb5
      • 2.Sc2#
    • 1...Sf5
      • 2.Sc2#
    • 1...Sc6
      • 2.Sc2#
    • 1...Sde6
      • 2.Sc2#
      • 2.Qxe5#
    • 1...Sg2
      • 2.Sxg2#
    • 1...Sh3
      • 2.Sg2#
    • 1...Sh5
      • 2.Sg2#
    • 1...Sfe6
      • 2.Sg2#
      • 2.Qxe5#
    • 1...Sg6
      • 2.Sg2#
    • 1...e4
      • 2.Qxf4#
  • Tries
    • 1.Qb4?
      • threat
        • 2.Qd2#
      • 1...Sxf3
        • 2.Sc2#
        • 2.Rxf3#
      • 1...Sb3
        • 2.Sc2#
      • 1...Sxd3!
    • 1.Qxd5?
      • threat
        • 2.Qe4#
      • 1...Sxd3
        • 2.Sg2#
      • 1...Sxd5
        • 2.Sg2#
      • 1...e4
        • 2.Qxd4#
      • 1...Bf5!
    • 1.Qxb6?
      • threat
        • 2.Sc2#
      • 1...Sxe2
        • 2.Rxe2#
      • 1...Sxd3!
    • 1.Qh6?
      • threat
        • 2.Sg2#
      • 1...Sxe2
        • 2.Rxe2#
      • 1...Sxf3
        • 2.Sc2#
      • 1...Bh3!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qc1#
      • 1...Sdxe2
        • 2.Sc2#
      • 1...Sxf3
        • 2.Sc2#
      • 1...Sfxe2
        • 2.Sg2#
      • 1...Sxd3
        • 2.Qxd3#
      • 1...Sb3
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 14
  • Sets
    • R(i);N_GUARD::QAR2(H),XP(e)
    • B(h);S_CUTR(i)::QAR2(H),XP(e)
    • S(b);N_GUARD::S(B),XS(b)
    • S(b);N_GUARD::S(B)
    • S(b);N_GUARD,XS(F)::S(B)
    • S(c);N_GUARD::S(B),XS(c)
    • S(c);N_GUARD::S(B)
    • P(e);OGATE::QAB1(H),XS(c)
  • Tries
    • Try
      • Q(H);
      • Threat
        • QAB1(H)
      • Vars
        • S(b);N_GUARD::S(B)
      • Refutation
        • S(c);XP(E)
    • Try
      • Q(H);XP(d)
      • Threat
        • QAR1(H)
      • Vars
        • S(c);N_GUARD,XP(E)::S(B)
        • S(c);N_GUARD,XQ(H)::S(B)
        • P(e);N_GUARD::QAB1(H),XS(b)
      • Refutation
        • B(h);
    • Try
      • Q(H);P_PINS(b),XP(f)
      • Threat
        • S(B)
      • Vars
        • S(c);OGATE,XP(C)::R1(D),XS(c)
      • Refutation
        • S(c);XP(E)
    • Try
      • Q(H);P_PINS(c)
      • Threat
        • S(B)
      • Vars
        • S(b);OGATE,XP(C)::R1(D),XS(b)
        • S(b);N_GUARD,XS(F)::S(B)
      • Refutation
        • B(h);
  • Actual
    • Q(H);
    • Threat
      • QAB(H)
    • Vars
      • S(b);N_GUARD,XP(C)::S(B)
      • S(b);N_GUARD,XS(F)::S(B)
      • S(c);N_GUARD,XP(C)::S(B)
      • S(c);OGATE,P_SPINS(c),XP(E)::QAR1(H),XS(c)
      • S(b);N_GUARD::S(B)
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