MESON Chess Problem Database

Problem Display
PID: 250939 (4rr1N/1p1R1b1n/2p2p1b/2p1kP2/n1Q4P/4N2R/2K5/1BB5 w - - 0 1)

Mosiashvili, Givi

Uralski Problemist, 2011

4rr1N/1p1R1b1n/2p2p1b/2p1kP2/n1Q4P/4N2R/2K5/1BB5

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rg8
      • 2.Sxf7#
    • 1...Bd5
      • 2.Sg6#
    • 1...Be6
      • 2.Sg6#
    • 1...Bg6
      • 2.Sxg6#
    • 1...Bg8
      • 2.Sg6#
    • 1...Sb2
      • 2.Bxb2#
    • 1...Sb6
      • 2.Bb2#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Qe4#
      • 1...Bxe3+
        • 2.Rxe3#
      • 1...Bxc4
        • 2.Sg6#
      • 1...Bd5
        • 2.Sg6#
      • 1...Sg5
        • 2.Sg4#
      • 1...Sc3!
    • 1.Bb2+?
      • 1...Sc3
        • 2.Bxc3#
      • 1...Sxb2!
  • Keys
    • 1.Kb3!
      • threat
        • 2.Sg4#
      • 1...Bxc4+
        • 2.Sxc4#
      • 1...Bxe3
        • 2.Rxe3#
      • 1...Rg8
        • 2.Sxf7#
      • 1...Bh5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(k);N_GUARD::S(J),XB(h)
    • B(h);N_GUARD::S(J)
    • B(h);N_GUARD,P_PINP(H)::S(J),XB(h)
    • S(a);N_GUARD::B(B),XS(a)
    • S(a);N_GUARD::B(B)
  • Tries
    • Try
      • K(C);P-FLIGHT,P_SPINS(D)
      • Threat
        • QAR1(F)
      • Vars
        • B(f);CHECK,OGATE,XS(D)::R(E),XB(f)
        • B(h);N_GUARD,XQ(F)::S(J)
        • B(h);N_GUARD::S(J)
        • S(i);N_PINS(D)::S(D)
      • Refutation
        • S(a);
    • Try
      • B(B);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::B(B),XS(a)
      • Refutation
        • S(a);XB(B)
  • Actual
    • K(C);P_SPINQ(F),S_FLIGHT
    • Threat
      • S(D)
    • Vars
      • B(h);CHECK,XQ(F)::S(D),XB(h)
      • B(f);OGATE,XS(D)::R(E),XB(f)
      • R(k);N_GUARD::S(J),XB(h)
      • B(h);N_PINQ(F)::QAR1(F)
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