MESON Chess Problem Database

Problem Display
PID: 135881 (2r4b/3Rp2Q/4P3/3Pk1P1/p2N4/Kp2PpP1/2bN3p/4n2q w - - 0 1)

Stoyanov, Kiril N

3rd Comm., BCF 092. Ty., 1959-1960

2r4b/3Rp2Q/4P3/3Pk1P1/p2N4/Kp2PpP1/2bN3p/4n2q

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Qxh8#
    • 1...Rc4
      • 2.Sxc4#
      • 2.Qxh8#
    • 1...Rc5
      • 2.Qxh8#
    • 1...Rc6
      • 2.Sxc6#
      • 2.Qxh8#
    • 1...Rc7
      • 2.Qxh8#
    • 1...Ra8
      • 2.Sc4#
      • 2.Sc6#
    • 1...Rb8
      • 2.Sc4#
      • 2.Sc6#
    • 1...Rd8
      • 2.Sc4#
      • 2.Sc6#
    • 1...Re8
      • 2.Sc4#
      • 2.Sc6#
    • 1...Rf8
      • 2.Sc4#
      • 2.Sc6#
    • 1...Rg8
      • 2.Sc4#
      • 2.Sc6#
    • 1...Bd1
      • 2.Qe4#
      • 2.Qf5#
    • 1...Be4
      • 2.Qxe4#
    • 1...Bf5
      • 2.Qxf5#
    • 1...Bg7
      • 2.Qxg7#
    • 1...Sg2
      • 2.S2xf3#
      • 2.S4xf3#
    • 1...Sd3
      • 2.Qe4#
      • 2.Qf5#
  • Tries
    • 1.Se4?
      • threat
        • 2.Qf5#
      • 1...Rf8
        • 2.Sc6#
      • 1...Bxe4!
    • 1.Qf7?
      • threat
        • 2.Qf4#
      • 1...Rf8
        • 2.Sc6#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Sg2
        • 2.S4xf3#
      • 1...Sd3
        • 2.Qf5#
      • 1...Bf6!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qf4#
      • 1...Rf8
        • 2.Sc4#
      • 1...Sg2
        • 2.S2xf3#
      • 1...Sd3
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(j);N_GUARD::QAB(J),XB(k)
    • B(c);N_GUARD::QAR1(J),XB(c)
    • B(k);N_GUARD::QAB(J),XB(k)
  • Tries
    • Try
      • S(A);
      • Threat
        • QAR1(J)
      • Vars
        • R(j);N_GUARD::S(E)
      • Refutation
        • B(c);XS(A)
    • Try
      • Q(J);
      • Threat
        • QAB1(J)
      • Vars
        • R(j);N_GUARD::S(E)
        • B(c);N_GUARD::QAR1(J),XB(c)
        • S(a);N_GUARD,S_CUTQ(b)::S(E),XP(f)
        • S(a);S_CUTB(c)::QAR1(J)
      • Refutation
        • B(k);
  • Actual
    • Q(J);
    • Threat
      • QAB1(J)
    • Vars
      • R(j);N_GUARD::S(A)
      • S(a);N_GUARD,S_CUTQ(b)::S(A),XP(f)
      • S(a);S_CUTB(c)::QAR1(J)
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