MESON Chess Problem Database

Problem Display
PID: 82488 (q3N3/3n3N/3Pk3/6RQ/4p2n/1r3b2/3p3K/8 w - - 0 1)

Havel, Miroslav

Tyden rozhlasu, 1940

q3N3/3n3N/3Pk3/6RQ/4p2n/1r3b2/3p3K/8

#2

6 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sc5
      • 2.Sf8#
    • 1...Sb6
      • 2.Sf8#
    • 1...Sf6
      • 2.Sf8#
    • 1...Sb8
      • 2.Sf8#
    • 1...Sf8
      • 2.Sxf8#
  • Tries
    • 1.Rb5?
      • threat
        • 2.Sg5#
      • 1...Qxe8
        • 2.Qd5#
      • 1...Sc5
        • 2.Sf8#
      • 1...Se5
        • 2.Sf8#
      • 1...Sb6
        • 2.Sf8#
      • 1...Sf6
        • 2.Sf8#
      • 1...Sb8
        • 2.Sf8#
      • 1...Sf8
        • 2.Sxf8#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Qd8
        • 2.Qd5#
      • 1...Rxb5!
    • 1.Qg4+?
      • 1...Kf7
        • 2.Qxd7#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Bxg4!
    • 1.Qg6+?
      • 1...Sf6
        • 2.Sf8#
      • 1...Sxg6!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Sg5#
      • 1...Qxe8
        • 2.Qd5#
      • 1...Sxc5
        • 2.Sf8#
      • 1...Se5
        • 2.Sf8#
      • 1...Sb6
        • 2.Sf8#
      • 1...Sf6
        • 2.Sf8#
      • 1...Sb8
        • 2.Sf8#
      • 1...Sf8
        • 2.Sxf8#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Qd8
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(g);N_GUARD::S(E)
    • S(g);N_GUARD::S(E),XS(g)
  • Tries
    • Try
      • R(B);
      • Threat
        • S(E)
      • Vars
        • Q(h);N_GUARD,XS(F)::QAB1(C)
        • S(g);N_GUARD::S(E)
        • S(g);N_GUARD::S(E),XS(g)
        • Q(h);N_GUARD::QAB1(C),XQ(h)
        • Q(h);N_GUARD::QAB1(C)
      • Refutation
        • R(b);XR(B)
    • Try
      • Q(C);CHECK
      • Vars
        • K(f);OGATE,S_FLIGHT::QAR2(C),XS(g)
        • S(e);N_GUARD,P_SPINS(e)::QAB1(C),XS(e)
      • Refutation
        • B(c);XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • S(g);P_SPINS(g)::S(E)
      • Refutation
        • S(e);XQ(C)
  • Actual
    • R(B);
    • Threat
      • S(E)
    • Vars
      • Q(h);N_GUARD,XS(F)::QAB1(C)
      • S(g);N_GUARD,XR(B)::S(E)
      • S(g);N_GUARD::S(E)
      • S(g);N_GUARD::S(E),XS(g)
      • Q(h);N_GUARD::QAB1(C),XQ(h)
      • Q(h);N_GUARD::QAB1(C)
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