MESON Chess Problem Database

Problem Display
PID: 195043 (5n1q/7p/K2Prbp1/8/Rpk1N3/p1r2N1Q/P7/3Rn3 w - - 0 1)

Fink, Adolf Jay

Pittsburgh Gazette-Times, 1918

5n1q/7p/K2Prbp1/8/Rpk1N3/p1r2N1Q/P7/3Rn3

#2

8 + 11

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe4
      • 2.Qc8#
    • 1...Re5
      • 2.Rd4#
    • 1...Sd7
      • 2.Qxe6#
  • Tries
    • 1.Se5+?
      • 1...Rxe5
        • 2.Qxc3#
      • 1...Bxe5!
  • Keys
    • 1.Ra5!
      • threat
        • 2.Rc5#
      • 1...Rxd6+
        • 2.Sxd6#
      • 1...Rxe4
        • 2.Qc8#
      • 1...b3
        • 2.Ra4#
      • 1...Re5
        • 2.Rd4#
      • 1...Bd4
        • 2.Sfd2#
      • 1...Sd3
        • 2.Sed2#
      • 1...Sd7
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(f);N_PINP(H),OGATE,XS(F)::QAR(D)
    • R(f);N_PINP(H),S_CUTB(g)::R1(A)
    • S(j);N_GUARD::QAB(D),XR(f)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • R(f);N_PINP(H),XS(C)::QAR1(D),XR(c)
      • Refutation
        • B(g);XS(C)
  • Actual
    • R(E);N_PINP(d)
    • Threat
      • R1(E)
    • Vars
      • R(f);CHECK,XP(H)::S(F),XR(f)
      • R(f);N_PINP(H),OGATE,XS(F)::QAR(D)
      • P(d);OGATEB::R(E)
      • R(f);N_PINP(H),S_CUTB(g)::R1(A)
      • B(g);SBLOCK::S(C)
      • S(a);SBLOCK::S(F)
      • S(j);N_GUARD::QAB(D),XR(f)
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