MESON Chess Problem Database

Problem Display
PID: 51855 (3bb1qn/3P1P1B/KQ4r1/1P1r2p1/8/RP1k1PR1/2p1N3/2B3N1 w - - 0 1)

Mosiashvili, Givi

The Problemist, 2004

(First published on Thu Jan 1 2004)

3bb1qn/3P1P1B/KQ4r1/1P1r2p1/8/RP1k1PR1/2p1N3/2B3N1

#2

13 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Qxd6#
    • 1...Bf6
      • 2.Qe3#
  • Tries
    • 1.Bxg6+?
      • 1...Rf5
        • 2.Bxf5#
        • 2.Qe3#
        • 2.Qd4#
        • 2.Qd6#
      • 1...Sxg6
        • 2.Qe3#
      • 1...Qxg6!
    • 1.Ra4?
      • threat
        • 2.f4#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Re5
        • 2.Rd4#
      • 1...Bxb6!
    • 1.Rg4?
      • threat
        • 2.b4#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Rc5
        • 2.Rd4#
      • 1...Bf6
        • 2.Qe3#
      • 1...Qg7!
    • 1.Qc6?
      • threat
        • 2.b4#
      • 1...Rc5
        • 2.f4#
      • 1...Bf6
        • 2.Qc4#
      • 1...Qg7!
  • Keys
    • 1.Qe6!
      • threat
        • 2.f4#
      • 1...Rd6+
        • 2.Qxd6#
      • 1...Re5
        • 2.b4#
      • 1...Bb6
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(c);::QAR(J),XR(c)
    • B(f);N_PINQ(J)::QAR1(J)
  • Tries
    • Try
      • B(M);CHECK,N_SPINQ(J),XR(e)
      • Vars
        • S(i);XB(M)::QAR1(J)
      • Refutation
        • Q(h);P_PINQ(J),XB(M)
    • Try
      • R(D);
      • Threat
        • R(G)+P(F)
      • Vars
        • R(c);N_GUARD::R1(D),XR(c)
        • R(c);N_GUARD::R1(D)
      • Refutation
        • B(f);XQ(J)
    • Try
      • R(G);
      • Threat
        • R(D)+P(E)
      • Vars
        • R(c);N_GUARD::R1(G),XR(c)
        • R(c);N_GUARD::R1(G)
        • B(f);N_PINQ(J)::QAR1(J)
      • Refutation
        • Q(h);
    • Try
      • Q(J);
      • Threat
        • R(D)+P(E)
      • Vars
        • R(c);::R(G)+P(F)
        • B(f);N_PINQ(J)::QAB1(J)
      • Refutation
        • Q(h);
  • Actual
    • Q(J);
    • Threat
      • R(G)+P(F)
    • Vars
      • R(c);CHECK,N_PINQ(J)::QAR(J),XR(c)
      • R(c);::R(D)+P(E)
      • B(f);N_PINQ(J)::QAB1(J)
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