MESON Chess Problem Database

Problem Display
PID: 70657 (qb5R/1r2Qp2/3p1P2/p7/NnPkpP2/NP2p3/3nK3/3R4 w - - 0 1)

Svitek, Miroslav

Hlas l'udu, 1974

qb5R/1r2Qp2/3p1P2/p7/NnPkpP2/NP2p3/3nK3/3R4

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Sxb5#
    • 1...Ra7
      • 2.Sb5#
    • 1...Rc7
      • 2.Sb5#
    • 1...Rd7
      • 2.Sb5#
    • 1...Rxe7
      • 2.Sb5#
    • 1...Sa2
      • 2.Sc2#
    • 1...Sc2
      • 2.Sxc2#
    • 1...Sd3
      • 2.Sc2#
    • 1...Sd5
      • 2.Sc2#
    • 1...Sa6
      • 2.Sc2#
    • 1...Sc6
      • 2.Sc2#
    • 1...d5
      • 2.Qc5#
  • Tries
    • 1.Rxd2+?
      • 1...Sd3
        • 2.Sc2#
      • 1...exd2!
    • 1.Re8?
      • threat
        • 2.Qxe4#
      • 1...Rxe7
        • 2.Sb5#
      • 1...Rb5
        • 2.Sxb5#
      • 1...Ra7
        • 2.Sb5#
      • 1...Rc7
        • 2.Sb5#
      • 1...Rd7
        • 2.Sb5#
      • 1...Sd3
        • 2.Sc2#
      • 1...d5
        • 2.Qc5#
      • 1...Rb6!
    • 1.Qxd6+?
      • 1...Sd5
        • 2.Sc2#
        • 2.Qc5#
        • 2.Qxd5#
      • 1...Bxd6!
  • Keys
    • 1.Rd8!
      • threat
        • 2.Qe5#
      • 1...Rxe7
        • 2.Sb5#
      • 1...Rb5
        • 2.Sxb5#
      • 1...Rd7
        • 2.Sb5#
      • 1...Sd3
        • 2.Sc2#
      • 1...Sd5
        • 2.Sc2#
      • 1...Sc6
        • 2.Sc2#
      • 1...d5
        • 2.Qc5#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(h);N_GUARD::S(C),XR(h)
    • R(h);N_GUARD::S(C)
    • R(h);N_GUARD,XQ(I)::S(C)
    • S(c);N_GUARD::S(C)
    • S(c);N_GUARD::S(C),XS(c)
    • S(c);N_GUARD,N_SPINS(a)::S(C)
    • P(g);OGATE::QAB1(I)
  • Tries
    • Try
      • R(A);CHECK,XS(a)
      • Vars
        • S(c);P_SPINS(c)::S(C)
      • Refutation
        • P(b);XR(A)
    • Try
      • R(J);
      • Threat
        • QAR1(I),XP(e)
      • Vars
        • R(h);N_GUARD,XQ(I)::S(C)
        • R(h);N_GUARD::S(C),XR(h)
        • R(h);N_GUARD::S(C)
        • S(c);N_GUARD,N_SPINS(a)::S(C)
        • P(g);OGATE::QAB1(I)
      • Refutation
        • R(h);
    • Try
      • Q(I);CHECK,XP(g)
      • Refutation
        • B(k);XQ(I)
  • Actual
    • R(J);P_PINP(g)
    • Threat
      • QAB1(I)
    • Vars
      • R(h);N_GUARD,XQ(I)::S(C)
      • R(h);N_GUARD::S(C),XR(h)
      • R(h);N_GUARD,N_SPINP(g)::S(C)
      • S(c);N_GUARD,N_SPINS(a)::S(C)
      • S(c);N_GUARD,N_SPINP(g)::S(C)
      • S(c);N_GUARD::S(C)
      • P(g);OGATE::QAB1(I)
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