MESON Chess Problem Database

Problem Display
PID: 98553 (8/1P1B2n1/1PK2b2/pR1Ppp2/k7/2Rp4/1np2p2/2q5 w - - 0 1)

Petkov, Petko Andonov

Problemas, 1968

8/1P1B2n1/1PK2b2/pR1Ppp2/k7/2Rp4/1np2p2/2q5

#2

7 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rxb2?
      • threat
        • 2.Kc5#
        • 2.Kd6#
        • 2.Kc7#
      • 1...Qe3
        • 2.Kd6#
        • 2.Kc7#
      • 1...Be7
        • 2.Kc7#
      • 1...Bd8
        • 2.Kc5#
        • 2.Kd6#
      • 1...Se6
        • 2.Kd6#
      • 1...Se8
        • 2.Kc5#
      • 1...Qxb2!
  • Keys
    • 1.Rbb3!
      • threat
        • 2.Kc5#
        • 2.Kd6#
        • 2.Kc7#
      • 1...Qe3
        • 2.Kd6#
        • 2.Kc7#
      • 1...Be7
        • 2.Kc7#
      • 1...Bd8
        • 2.Kc5#
        • 2.Kd6#
      • 1...Sc4
        • 2.Kc5#
        • 2.Kc7#
      • 1...Se6
        • 2.Kd6#
      • 1...Se8
        • 2.Kc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);XS(b)
      • Threat
        • DUALS(3)
      • Vars
        • B(j);::B(G)+K(E)
        • S(k);::B(G)+K(E)
      • Refutation
        • Q(a);XR(B)
  • Actual
    • R(B);
    • Threat
      • DUALS(3)
    • Vars
      • B(j);::B(G)+K(E)
      • S(k);::B(G)+K(E)
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