MESON Chess Problem Database

Problem Display
PID: 96499 (3R4/8/1p6/2b1Bp2/N3kP2/1r1ppnK1/2P1R3/3nQN2 w - - 0 1)

Krzeli, Ratislav

Problemas, 1980

3R4/8/1p6/2b1Bp2/N3kP2/1r1ppnK1/2P1R3/3nQN2

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.cxd3#
    • 1...Rb2
      • 2.cxd3#
    • 1...Rb4
      • 2.cxd3#
    • 1...Rb5
      • 2.cxd3#
    • 1...Sc3
      • 2.cxd3#
    • 1...Sxe1
      • 2.Sd2#
    • 1...Sg1
      • 2.Sd2#
    • 1...Sd2
      • 2.Sxd2#
    • 1...Sh2
      • 2.Sd2#
    • 1...Sd4
      • 2.Sd2#
    • 1...Sh4
      • 2.Sd2#
    • 1...Sxe5
      • 2.Sd2#
    • 1...Sg5
      • 2.Sd2#
    • 1...b5
      • 2.Sxc5#
  • Tries
    • 1.Sc3+?
      • 1...Sxc3
        • 2.cxd3#
      • 1...Rxc3!
    • 1.Qf2?
      • threat
        • 2.Qxf3#
      • 1...Sxe5
        • 2.Sd2#
      • 1...Se1
        • 2.Sd2#
      • 1...Sg1
        • 2.Sd2#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sh2
        • 2.Sd2#
      • 1...Sd4
        • 2.Sd2#
      • 1...Sh4
        • 2.Sd2#
      • 1...Sg5
        • 2.Sd2#
      • 1...Sxf2!
  • Keys
    • 1.Qa5!
      • threat
        • 2.Qa8#
      • 1...Sxe5
        • 2.Sd2#
      • 1...bxa5
        • 2.Sxc5#
      • 1...Sc3
        • 2.cxd3#
      • 1...Sd4
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • R(b);N_GUARD::P(C),XP(c)
    • S(a);S_CUTR(b)::P(C),XP(c)
    • S(e);N_GUARD,XQ(A)::S(B)
    • S(e);N_GUARD::S(B)
    • S(e);N_GUARD::S(B),XS(e)
    • S(e);N_GUARD,XB(H)::S(B)
    • P(i);N_GUARD::S(F),XB(g)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • S(a);XS(F)::P(C),XP(c)
      • Refutation
        • R(b);XS(F)
    • Try
      • Q(A);
      • Threat
        • QAB1(A),XS(e)
      • Vars
        • S(e);N_GUARD,XB(H)::S(B)
        • S(e);N_GUARD::S(B)
        • S(e);N_GUARD::S(B),XS(e)
      • Refutation
        • S(a);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • S(e);N_GUARD,XB(H)::S(B)
      • P(i);N_GUARD,XQ(A)::S(F),XB(g)
      • S(a);S_CUTR(b)::P(C),XP(c)
      • S(e);N_GUARD::S(B)
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