MESON Chess Problem Database

Problem Display
PID: 75659 (1b6/2p2p1p/B3pprq/5PnR/2N1k3/3R2Pn/1BQ5/2K5 w - - 0 1)

Hyasov, Stanislav

1st Prize, Shakhmatnaya kompozitsiya, 1996

1b6/2p2p1p/B3pprq/5PnR/2N1k3/3R2Pn/1BQ5/2K5

#2

9 + 11

6166 FIDE Album (1998-2000) 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf5
      • 2.Rd4#
    • 1...Sf3+
      • 2.Rd2#
    • 1...exf5
      • 2.Sd2#
      • 2.Qe2#
  • Tries
    • 1.Se3?
      • threat
        • 2.Qc6#
      • 1...Kf3
        • 2.Qg2#
      • 1...c5
        • 2.Bb7#
      • 1...c6
        • 2.Qxc6#
      • 1...Sf4!
    • 1.Bb7+?
      • 1...Kxf5
        • 2.Se3#
        • 2.Rd4#
      • 1...c6!
    • 1.Rh4+?
      • 1...Kxf5
        • 2.Se3#
        • 2.Rf3#
        • 2.Rd5#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Qxh4!
    • 1.Qg2+?
      • 1...Kxd3
        • 2.Qc2#
      • 1...Kxf5
        • 2.Se3#
      • 1...Sf3+!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Sd6#
      • 1...Sf3+
        • 2.Sd2#
      • 1...Kxd3
        • 2.Qc2#
      • 1...Kxf5
        • 2.Se3#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINS(c),S_FLIGHT,XP(G)::QAB(C)+R(D)
    • S(c);CHECK,SBLOCK::QAB(C)+R(D)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB(C)
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
        • P(h);N_GUARD::B(I)
        • P(h);::QAB(C),XP(h)
      • Refutation
        • S(a);
    • Try
      • B(I);CHECK
      • Refutation
        • P(h);P_SPINP(h)
    • Try
      • R(H);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::R1(H),XS(a)
      • Refutation
        • Q(g);XR(H)
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATEB,S_FLIGHT,XR(D)::QAB1(C)
        • K(b);P_SPINS(c),S_FLIGHT,XP(G)::S(F)
      • Refutation
        • S(c);CHECK,P_SPINS(c)
  • Actual
    • Q(C);
    • Threat
      • QAR(C)+S(F),DCHECK
    • Vars
      • S(c);CHECK::QAR(C)+S(F),DCHECK
      • K(b);OGATEB,S_FLIGHT,XR(D)::QAB1(C)
      • K(b);P_SPINS(c),S_FLIGHT,XP(G)::S(F)
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