MESON Chess Problem Database

Problem Display
PID: 161418 (5B2/NRP5/8/n1Pp2pq/1rPk2pP/Pb4R1/1nrP4/KB2NQb1 w - - 0 1)

Bunka, Vladislav

4th HM., Mariani-50 JT, 2011

5B2/NRP5/8/n1Pp2pq/1rPk2pP/Pb4R1/1nrP4/KB2NQb1

#2

14 + 11

4901 Best Problems 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rcxc4
      • 2.Qf6#
    • 1...gxh4
      • 2.Qf4#
  • Tries
    • 1.Qf6+?
      • 1...Kxc4
        • 2.Rxb4#
      • 1...Ke4!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qxd5#
      • 1...Kxc4
        • 2.Rxb4#
      • 1...Rcxc4
        • 2.Qf6#
      • 1...Rbxc4
        • 2.Sb5#
      • 1...Bxc4
        • 2.Sxc2#
      • 1...Sbxc4
        • 2.Rd3#
      • 1...Saxc4
        • 2.Sc6#
      • 1...dxc4
        • 2.Bg7#
      • 1...gxh4
        • 2.Qf4#
      • 1...Qf7
        • 2.Rxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(c);SBLOCK,XP(H)::QAB(D)
    • P(j);N_GUARD,XP(I)::QAR2(D)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(f);P-FLIGHT,XP(H)::R1(L),XR(e)
      • Refutation
        • K(f);P-FLIGHT,P_SPINR(c)
  • Actual
    • Q(D);
    • Threat
      • QAR1(D),XP(i)
    • Vars
      • K(f);OGATEB,P-FLIGHT,XP(H)::R1(L),XR(e)
      • R(c);SBLOCK,XP(H)::QAB(D)
      • R(e);N_GUARD,SBLOCK,XP(H)::S(K)
      • B(d);N_GUARD,SBLOCK,XP(H)::S(C),XR(c)
      • S(b);N_GUARD,SBLOCK,XP(H)::R1(G)
      • S(h);N_GUARD,SBLOCK,XP(H)::S(K)
      • P(i);SBLOCK,XP(H)::B(N)
      • P(j);N_GUARD,XP(I)::QAR2(D)
      • Q(k);N_GUARD::R(G),XP(g)
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