MESON Chess Problem Database

Problem Display
PID: 92134 (7K/1p6/1B1pN3/1b2Q3/pkp1n3/p7/rb6/nRN5 w - - 0 1)

Wielgos, Oskar

Deutsche Schachzeitung, 1983

7K/1p6/1B1pN3/1b2Q3/pkp1n3/p7/rb6/nRN5

#2

6 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba6
      • 2.Ba5#
    • 1...Bc6
      • 2.Ba5#
    • 1...Bd7
      • 2.Ba5#
    • 1...Be8
      • 2.Ba5#
    • 1...Sb3
      • 2.Sxa2#
    • 1...Sc3
      • 2.Qxd6#
  • Tries
    • 1.Sc7?
      • threat
        • 2.Sd5#
      • 1...c3
        • 2.Qxb5#
      • 1...Ba6
        • 2.Ba5#
      • 1...Bc6
        • 2.Ba5#
      • 1...Bd7
        • 2.Ba5#
      • 1...Be8
        • 2.Ba5#
      • 1...Sc3
        • 2.Qxd6#
      • 1...d5
        • 2.Sxd5#
      • 1...Sf6!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sxa2#
      • 1...Kc3
        • 2.Ba5#
      • 1...Sc3
        • 2.Qxd6#
      • 1...c3
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • B(i);::B(D)
    • S(a);N_SPINB(c),SBLOCK::S(B),XR(b)
    • S(h);N_PINQ(C),SBLOCK::QAB(C),XP(j)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • P(g);N_PINQ(C),SBLOCK::QAR1(C),XB(i)
        • B(i);::B(D)
        • S(h);N_PINQ(C),SBLOCK::QAB(C),XP(j)
        • P(j);::S(E),XP(j)
      • Refutation
        • S(h);N_PINQ(C)
  • Actual
    • S(E);N_SPINQ(C)
    • Threat
      • S(B),XR(b)
    • Vars
      • K(f);N_SPINB(c),S_FLIGHT::B(D)
      • S(h);N_GUARD,SBLOCK::QAB(C),XP(j)
      • P(g);SBLOCK::QAR1(C),XB(i)
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