MESON Chess Problem Database

Problem Display
PID: 110532 (4QB2/1R1p4/Pn6/rkN3K1/1P2P3/p2NP3/P2P4/5B2 w - - 0 1)

Wainwright, Joseph CJ

St. Louis Globe, 1914

4QB2/1R1p4/Pn6/rkN3K1/1P2P3/p2NP3/P2P4/5B2

#2

13 + 5

102 Probleemblad 1974
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Se5#
  • Tries
    • 1.Se1+?
      • 1...Kxb4
        • 2.Sc2#
      • 1...Kc6!
    • 1.Sf4+?
      • 1...Kxb4
        • 2.Sd5#
      • 1...Kc6!
    • 1.Rxb6+?
      • 1...Kc4
        • 2.Sc1#
        • 2.Se1#
        • 2.Sb2#
        • 2.Sf2#
        • 2.Sf4#
        • 2.Se5#
      • 1...Kxb6!
  • Keys
    • 1.Sxd7!
      • 1...Ka4+
        • 2.S7c5#
      • 1...Kc4+
        • 2.S3e5#
      • 1...Kxa6+
        • 2.S3c5#
      • 1...Kc6+
        • 2.S7e5#
      • 1...Rxa6
        • 2.S7e5#
        • 2.Sxb6#
      • 1...Ra4
        • 2.S3e5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINS(d),P_PINS(H),S_FLIGHT::S(D)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(c);N_SPINP(e),P-FLIGHT,P_PINS(H),XP(F)::S(D)
      • Refutation
        • K(c);N_SPINS(d),P_PINS(H),S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(c);N_SPINP(e),P-FLIGHT,P_PINS(H),XP(F)::S(D)
      • Refutation
        • K(c);N_SPINS(d),P_PINS(H),S_FLIGHT
    • Try
      • R(K);CHECK,XS(d)
      • Refutation
        • K(c);N_SPINP(e),P-FLIGHT,P_PINS(H),XR(K)
  • Actual
    • S(H);XP(e)
    • Vars
      • K(c);CHECK,N_SPINS(d),S_FLIGHT::QAB(L)+S(H),DCHECK
      • K(c);CHECK,N_SPINS(d),S_FLIGHT::B(A)+S(D),DCHECK
      • K(c);CHECK,N_SPINS(d),S_FLIGHT,XP(J)::B(A)+S(D),DCHECK
      • R(b);SBLOCK::B(A)+S(D)
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