MESON Chess Problem Database

Problem Display
PID: 96642 (7B/3R4/4P3/1R1N1r2/K1PNk1P1/QP1r1pP1/1pP2P2/1b6 w - - 0 1)

Postma, Bernardus

The Chess Problem, 1946

7B/3R4/4P3/1R1N1r2/K1PNk1P1/QP1r1pP1/1pP2P2/1b6

#2

14 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Sc3#
    • 1...Rd2
      • 2.Sc3#
    • 1...Rc3
      • 2.Sxc3#
    • 1...Rxd4
      • 2.Sc3#
    • 1...Re5
      • 2.Sf6#
    • 1...Rg5
      • 2.Sf6#
    • 1...Rh5
      • 2.Sf6#
    • 1...Rf6
      • 2.Sxf6#
  • Tries
    • 1.cxd3+?
      • 1...Bxd3
        • 2.Sc3#
      • 1...Kxd3!
  • Keys
    • 1.gxf5!
      • threat
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • R(c);N_GUARD::S(K)
    • R(c);N_GUARD::S(K),XR(c)
    • R(c);N_GUARD,P_PINP(G),XS(H)::S(K)
    • R(f);N_GUARD::S(K)
    • R(f);N_GUARD::S(K),XR(f)
  • Tries
    • Try
      • P(A);CHECK,XR(c)
      • Vars
        • B(a);SBLOCK,XP(A)::S(K)
      • Refutation
        • K(e);S_FLIGHT,XP(A)
  • Actual
    • P(I);XR(f)
    • Threat
      • S(K)
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Developed and maintained by Brian Stephenson.
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