MESON Chess Problem Database

Problem Display
PID: 134352 (b2Q4/6b1/1B6/r1n1p3/2NPk1Kp/4N1nR/2P5/3R4 w - - 0 1)

Mosiashvili, Givi

Comm., The Problemist, 2009

b2Q4/6b1/1B6/r1n1p3/2NPk1Kp/4N1nR/2P5/3R4

#2

9 + 8

56 The Problemist 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qxd5#
    • 1...Sf1
      • 2.Sd6#
    • 1...Sh1
      • 2.Sd2#
      • 2.Sd6#
    • 1...Se2
      • 2.Sd2#
      • 2.Sd6#
    • 1...Sf5
      • 2.Sd2#
    • 1...Sh5
      • 2.Sd2#
      • 2.Sd6#
    • 1...Sd3
      • 2.cxd3#
  • Tries
    • 1.Re1?
      • threat
        • 2.Sd2#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Sf1
        • 2.Sxf1#
      • 1...Sb3
        • 2.Sd6#
      • 1...exd4!
    • 1.Qf6?
      • threat
        • 2.Qf3#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Bxf6!
    • 1.dxc5?
      • threat
        • 2.Qd3#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Ra3!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Sd6#
      • 1...Bf8
        • 2.Qxe5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sb7
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(h);N_GUARD::QAB1(I),XB(h)
    • S(a);::S(E)
    • S(e);OGATE::P(B),XS(e)
  • Tries
    • Try
      • R(A);
      • Threat
        • S(E)
      • Vars
        • B(h);N_GUARD::QAB1(I),XB(h)
        • S(a);N_GUARD::R(A)+S(C),XS(a)
        • S(e);::S(E)
      • Refutation
        • P(f);XP(F)
    • Try
      • Q(I);
      • Threat
        • QAB1(I)
      • Vars
        • S(a);N_GUARD::QAB1(I),XS(a)
      • Refutation
        • B(g);XQ(I)
    • Try
      • P(F);XS(e)
      • Threat
        • QAB1(I)
      • Vars
        • B(h);N_GUARD::QAB1(I),XB(h)
      • Refutation
        • R(d);
  • Actual
    • Q(I);
    • Threat
      • S(E)
    • Vars
      • B(g);N_GUARD::QAR1(I),XP(f)
      • S(a);N_GUARD::QAB1(I),XS(a)
      • S(e);::S(E)
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