MESON Chess Problem Database

Problem Display
PID: 185700 (2K1R3/bpp2p2/8/2Q1NkpN/3n2p1/4R3/2q5/1r6 w - - 0 1)

Stoyanov, Kiril N

Chess, 1957

2K1R3/bpp2p2/8/2Q1NkpN/3n2p1/4R3/2q5/1r6

#2

6 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Se2
      • 2.Qxc2#
    • 1...Sb3
      • 2.Qxc2#
    • 1...Sf3
      • 2.Qxc2#
    • 1...Sb5
      • 2.Qxc2#
    • 1...Sc6
      • 2.Qxc2#
    • 1...Se6
      • 2.Qxc2#
  • Tries
    • 1.Rf3+?
      • 1...Ke4
        • 2.Sg3#
        • 2.Sf6#
      • 1...Sxf3
        • 2.Qxc2#
      • 1...gxf3!
  • Keys
    • 1.Re6!
      • threat
        • 2.Rf6#
      • 1...Kxe6
        • 2.Sd3#
      • 1...Sxe6
        • 2.Qxc2#
      • 1...fxe6
        • 2.Qf8#
      • 1...Rb6
        • 2.Sc4#
      • 1...f6
        • 2.Rxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • S(c);N_GUARD::QAB(B),XQ(b)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • S(c);XR(A)::QAB(B),XQ(b)
      • Refutation
        • P(d);XR(A)
  • Actual
    • R(F);
    • Threat
      • R1(F)
    • Vars
      • K(e);S_FLIGHT,XR(F)::R(A)+S(C)
      • S(c);N_GUARD,SBLOCK,XR(F)::QAB(B),XQ(b)
      • P(j);OGATEB,SBLOCK,XR(F)::QAR(B)
      • R(a);S_CUTB(g)::QAR(B)+S(C)
      • P(j);::R1(F),XP(j)
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