MESON Chess Problem Database

Problem Display
PID: 266594 (n6b/1B1Q4/1pK1p3/R4p2/1p2k1q1/2P1B1P1/n2PN1P1/1b2R3 w - - 0 1)

Mosiashvili, Givi

Zadachi i Etyudi, 2011

n6b/1B1Q4/1pK1p3/R4p2/1p2k1q1/2P1B1P1/n2PN1P1/1b2R3

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg3
      • 2.Sxg3#
    • 1...Bd3
      • 2.Kd6#
    • 1...Bd4
      • 2.Qxd4#
    • 1...Be5
      • 2.Kb5#
    • 1...Sc7
      • 2.Kxc7#
    • 1...e5
      • 2.Kb5#
      • 2.Qd5#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Kd6#
      • 1...Qxf4
        • 2.Bxf4#
      • 1...Be5
        • 2.Kb5#
      • 1...Sc7
        • 2.Kxc7#
      • 1...Sxc3!
    • 1.Re5+?
      • 1...Bxe5
        • 2.Kb5#
      • 1...Kxe5!
    • 1.Qxe6+?
      • 1...Be5
        • 2.Qd5#
      • 1...Kd3!
    • 1.Qd3+?
      • 1...Bxd3
        • 2.Kd6#
        • 2.Kd7#
      • 1...Kxd3!
  • Keys
    • 1.Bf4!
      • threat
        • 2.Kb5#
      • 1...Qxe2
        • 2.Rxe2#
      • 1...Qxf4
        • 2.Sxf4#
      • 1...Sxc3
        • 2.Sxc3#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Bd3
        • 2.Kd6#
      • 1...Sc7
        • 2.Kxc7#
      • 1...b5
        • 2.Kxb5#
        • 2.Kc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • Q(e);XP(G)::S(C),XQ(e)
    • B(a);SBLOCK::B(J)+K(I)
    • B(j);N_GUARD::QAR1(K),XB(j)
    • B(j);SBLOCK::B(J)+K(I)
    • S(i);::B(J)+K(I),XS(i)
  • Tries
    • Try
      • S(C);
      • Threat
        • B(J)+K(I)
      • Vars
        • Q(e);OGATE,XS(C)::R(A)+B(F),XQ(e)
        • B(j);SBLOCK::B(J)+K(I)
        • S(i);::B(J)+K(I),XS(i)
      • Refutation
        • S(b);XP(E)
    • Try
      • R(H);CHECK
      • Vars
        • B(j);SBLOCK,XR(H)::B(J)+K(I)
      • Refutation
        • K(d);P-FLIGHT,XR(H)
    • Try
      • Q(K);CHECK,XP(h)
      • Vars
        • B(j);P_SPINB(j)::QAB1(K)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(K);CHECK
      • Refutation
        • K(d);S_FLIGHT,XQ(K)
  • Actual
    • B(F);
    • Threat
      • B(J)+K(I)
    • Vars
      • Q(e);OGATE,P_SPINQ(e),XS(C)::R(A),XQ(e)
      • Q(e);XB(F)::R(A)+S(C),XQ(e)
      • S(b);XP(E)::R(A)+S(C),DCHECK,XS(b)
      • B(j);N_GUARD::QAR1(K),XB(j)
      • B(a);SBLOCK::B(J)+K(I)
      • S(i);::B(J)+K(I),XS(i)
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