MESON Chess Problem Database

Problem Display
PID: 135426 (4R3/2N5/2Rp3B/2P1P3/2pk4/1P4N1/1p2Pn2/1K4Q1 w - - 0 1)

Bunka, Vladislav

Rhein-Main Presse, 1999

4R3/2N5/2Rp3B/2P1P3/2pk4/1P4N1/1p2Pn2/1K4Q1

#2

11 + 5

14503 Problemschach-Jahrbuch (1999) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Qxf2#
    • 1...d5
      • 2.Sb5#
  • Tries
    • 1.cxd6?
      • threat
        • 2.Rxc4#
      • 1...cxb3
        • 2.Qxf2#
      • 1...c3
        • 2.Rc4#
        • 2.Qxf2#
      • 1...Kc3!
  • Keys
    • 1.Qe1!
      • 1...cxb3
        • 2.Qb4#
      • 1...dxc5
        • 2.Rd6#
      • 1...dxe5
        • 2.Rd8#
      • 1...Sd1
        • 2.Qd2#
      • 1...Sh1
        • 2.Qd2#
      • 1...Sd3
        • 2.e3#
      • 1...Sh3
        • 2.Qd2#
      • 1...Se4
        • 2.Sf5#
      • 1...Sg4
        • 2.Qd2#
      • 1...c3
        • 2.Qxf2#
      • 1...d5
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAB(B),XS(b)
    • P(e);SBLOCK::S(J)
  • Tries
    • Try
      • P(F);XP(e)
      • Threat
        • R1(H),XP(c)
      • Vars
        • P(c);XP(D)::QAB(B),XS(b)
      • Refutation
        • K(d);N_SPINS(b),P_SPINP(c),S_FLIGHT
  • Actual
    • Q(B);N_PINS(b)
    • Vars
      • P(c);OGATEB,XP(D)::QAR2(B)
      • P(e);SBLOCK,XP(F)::R(H)
      • P(e);OGATEB,SBLOCK,XP(G)::R(K)
      • S(b);N_GUARD::QAR2(B)
      • S(b);SBLOCK::P(C)
      • S(b);SBLOCK::S(E)
      • P(c);SBLOCK::QAB(B),XS(b)
      • P(e);SBLOCK::S(J)
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