MESON Chess Problem Database

Problem Display
PID: 109712 (1RbR2n1/PpQpP3/2p5/2k5/1N1N4/1PKP4/8/8 w - - 0 1)

Wielgos, Oskar

Sinfonie Scacchistiche, 1977

1RbR2n1/PpQpP3/2p5/2k5/1N1N4/1PKP4/8/8

#2

10 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...b5
      • 2.Rxb5#
    • 1...d5
      • 2.Rxd5#
  • Tries
    • 1.Sdxc6?
      • threat
        • 2.Sd4#
      • 1...Kb5
        • 2.Sd4#
        • 2.Qa5#
      • 1...bxc6
        • 2.d4#
      • 1...dxc6
        • 2.Rd5#
      • 1...Sxe7!
  • Keys
    • 1.Sbxc6!
      • threat
        • 2.Sb4#
      • 1...Kd5
        • 2.Sb4#
        • 2.Qe5#
      • 1...Sxe7
        • 2.Sxe7#
      • 1...bxc6
        • 2.Rb5#
      • 1...dxc6
        • 2.b4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • P(c);OGATE::R1(I),XP(c)
    • P(d);OGATE::R1(J),XP(d)
  • Tries
    • Try
      • S(E);XP(b)
      • Threat
        • QAR(G)+S(E)
      • Vars
        • P(c);P_SPINP(c),XS(E)::P(C)
        • P(d);OGATE,P_SPINP(d),XS(E)::R1(J)
      • Refutation
        • S(f);XP(H)
  • Actual
    • S(D);XP(b)
    • Threat
      • QAR(G)+S(D)
    • Vars
      • S(f);XP(H)::QAR(G)+S(D),XS(f)
      • P(c);OGATE,P_SPINP(c),XS(D)::R1(I)
      • P(d);P_SPINP(d),XS(D)::P(A)
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