MESON Chess Problem Database

Problem Display
PID: 119127 (7b/5B1K/1p2RPPB/4pk1N/4pppp/2r5/q7/5Q2 w - - 0 1)

Wirtanen, Erkki Aukusti

Problemas, 1977

7b/5B1K/1p2RPPB/4pk1N/4pppp/2r5/q7/5Q2

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf6
      • 2.Rxf6#
    • 1...Bg7
      • 2.Sxg7#
    • 1...g3
      • 2.Qh3#
  • Keys
    • 1.Bxf4!
      • threat
        • 2.Rxe5#
      • 1...Qxe6
        • 2.Be3#
      • 1...Bxf6
        • 2.Rxf6#
      • 1...exf4
        • 2.Qxf4#
      • 1...g3
        • 2.Qh3#
      • 1...Qd5
        • 2.Be3#
      • 1...Qa5
        • 2.Be3#
      • 1...Rc5
        • 2.Bd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • B(j);OGATE,XP(D)::R1(C),XB(j)
    • B(j);N_GUARD::S(B),XB(j)
    • P(e);OGATEB::QAB(A)
  • Actual
    • B(F);XP(d)
    • Threat
      • R1(C),XP(g)
    • Vars
      • Q(a);N_GUARD,XR(C)::QAR(A)+B(F)
      • B(j);OGATE,XP(D)::R1(C),XB(j)
      • P(g);OGATE,P_SPINP(g),XB(F)::QAR1(A),XP(g)
      • P(e);OGATEB::QAB(A)
      • Q(a);N_GUARD::QAR(A)+B(F)
      • R(b);N_GUARD::QAR(A)+B(F)
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