MESON Chess Problem Database

Problem Display
PID: 103472 (4K3/p2R1p2/k7/P2N4/2P5/2B1pr2/7R/3b3B w - - 0 1)

Andreu, Luis

Berger, Johann Nepomuk

Bulletin de la FFE, 1937

4K3/p2R1p2/k7/P2N4/2P5/2B1pr2/7R/3b3B

#2

8 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rf1
      • 2.Sc7#
    • 1...Rf2
      • 2.Sc7#
    • 1...Rg3
      • 2.Sc7#
    • 1...Rh3
      • 2.Sc7#
    • 1...Rf4
      • 2.Sc7#
    • 1...Rf5
      • 2.Sc7#
    • 1...Rf6
      • 2.Sc7#
    • 1...f5
      • 2.Rh6#
  • Tries
    • 1.Bd4?
      • threat
        • 2.Rxa7#
      • 1...Kxa5
        • 2.Rxa7#
      • 1...Ba4!
    • 1.Rb2?
      • threat
        • 2.Sc7#
        • 2.Rd6#
      • 1...Rf6
        • 2.Sc7#
      • 1...Ba4
        • 2.Sc7#
      • 1...Bb3!
    • 1.Rh6+?
      • 1...Rf6
        • 2.Sc7#
        • 2.Rxf6#
      • 1...f6!
  • Keys
    • 1.Rh5!
      • threat
        • 2.Sb4#
      • 1...Rf5
        • 2.Sc7#
      • 1...f5
        • 2.Rh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • R(c);::S(F)
    • P(f);N_GUARD,S_CUTR(c)::R(B)
  • Tries
    • Try
      • B(C);
      • Threat
        • R1(G),XP(e)
      • Vars
        • K(d);P-FLIGHT,XP(E)::R(G),XP(e)
      • Refutation
        • B(a);P_PINR(G)
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::S(F)
        • B(a);P_PINR(G)::S(F)
      • Refutation
        • B(a);
    • Try
      • R(B);CHECK
      • Refutation
        • P(f);P_SPINP(f)
  • Actual
    • R(B);
    • Threat
      • S(F)
    • Vars
      • R(c);::S(F)
      • P(f);N_GUARD,S_CUTR(c)::R(B)
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