MESON Chess Problem Database

Problem Display
PID: 81026 (3r4/p3R3/2pR4/KQp1qp2/3nk3/1p4Pp/6r1/1b1NN2B w - - 0 1)

Hronec, Jaroslav

2nd HM., Smer, 1960

3r4/p3R3/2pR4/KQp1qp2/3nk3/1p4Pp/6r1/1b1NN2B

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Qd3#
    • 1...Bd3
      • 2.Qxd3#
    • 1...Sc2
      • 2.Qd3#
      • 2.Qxc6#
    • 1...Se2
      • 2.Qxe2#
      • 2.Qxc6#
    • 1...Sf3
      • 2.Qxc6#
    • 1...Se6
      • 2.Qe2#
    • 1...c4
      • 2.Rxe5#
      • 2.Qxe5#
  • Tries
    • 1.Bxg2+?
      • 1...Sf3
        • 2.Bxf3#
        • 2.Qe2#
        • 2.Qc4#
        • 2.Qxc6#
      • 1...hxg2!
  • Keys
    • 1.Qxc5!
      • threat
        • 2.Rxe5#
        • 2.Qxe5#
      • 1...Qxe7
        • 2.Qxd4#
      • 1...Qe6
        • 2.Qxd4#
      • 1...Re8
        • 2.Rxd4#
        • 2.Qxe5#
      • 1...Sf3
        • 2.Sc3#
      • 1...Se6
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAB1(F)
    • B(a);N_GUARD::QAB1(F),XB(a)
    • S(e);N_GUARD,N_SPINR(b)::QAB(F),XP(j)
    • S(e);N_GUARD,N_SPINQ(h)::QAR2(F)
  • Tries
    • Try
      • B(C);CHECK,XR(b)
      • Refutation
        • P(d);XB(C)
  • Actual
    • Q(F);P_SPINQ(F),XP(g)
    • Threat
      • DUALS(2)
    • Vars
      • Q(h);N_PINQ(F),N_SPINQ(h),XR(H)::QAR1(F),XS(e)
      • Q(h);N_PINQ(F)::QAR1(F),XS(e)
      • S(e);N_SPINR(b)::S(A)
      • S(e);N_SPINQ(h)::S(A)
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