MESON Chess Problem Database

Problem Display
PID: 247578 (3b1r2/2p2p1p/2B2N2/q2rQ2K/1p5p/3PPk2/b1R4P/3n4 w - - 0 1)

Zabirokhin, Piotr

Zadachi i Etyudi, 2003

3b1r2/2p2p1p/2B2N2/q2rQ2K/1p5p/3PPk2/b1R4P/3n4

#2

8 + 12

SOLUTION

  • SOUND
  • Tries
    • 1.Kxh4?
      • threat
        • 2.Qg3#
        • 2.Qf4#
        • 2.Qe4#
      • 1...Sxe3
        • 2.Qg3#
        • 2.Qe4#
      • 1...Sf2
        • 2.Qg3#
      • 1...Re8
        • 2.Qg3#
        • 2.Qf4#
      • 1...Rg8
        • 2.Qf4#
        • 2.Qe4#
      • 1...Sc3
        • 2.Qg3#
        • 2.Qf4#
      • 1...Bxf6+!
    • 1.Kh6?
      • threat
        • 2.Qf4#
        • 2.Qe4#
      • 1...Sxe3
        • 2.Qe4#
      • 1...Re8
        • 2.Qf4#
      • 1...Sc3
        • 2.Qf4#
      • 1...Sf2!
    • 1.Bxd5+?
      • 1...Bxd5
        • 2.Qf4#
      • 1...Qxd5!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Qf5#
      • 1...Sxe3
        • 2.Rf2#
      • 1...Sf2
        • 2.Rxf2#
      • 1...Bg5
        • 2.Qe4#
      • 1...f5
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(F);N_SPINQ(E),P-FLIGHT,P_SPINS(H),XP(e)
      • Threat
        • DUALS(3)
      • Vars
        • S(a);::QAR1(E)
      • Refutation
        • B(k);CHECK,XS(H)
    • Try
      • K(F);N_SPINQ(E),P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XP(D)::QAB1(E)
        • R(l);::QAR1(E)
        • S(a);::QAR1(E)
      • Refutation
        • S(a);
    • Try
      • B(G);CHECK,N_SPINQ(E),XR(g)
      • Vars
        • B(b);XB(G)::QAR1(E)
      • Refutation
        • Q(f);P_PINQ(E),XB(G)
  • Actual
    • S(H);
    • Threat
      • QAR2(E)
    • Vars
      • S(a);N_GUARD,XP(D)::R1(A)
      • S(a);N_GUARD::R1(A),XS(a)
      • B(k);N_PINQ(E)::QAB1(E)
      • P(i);N_PINQ(E)::QAR1(E)
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