MESON Chess Problem Database

Problem Display
PID: 21472 (1R6/rn1p3r/pk5p/p7/P2P4/1q2N2K/b7/1QR1b1BB w - - 0 1)

Mansfield, Comins

Good Companions, 1919

1R6/rn1p3r/pk5p/p7/P2P4/1q2N2K/b7/1QR1b1BB

#2

9 + 11

5862 An ABC of Chess Problems 1970
2048 Tuxens skakopgaver (Leif C Schmidt) 1984
4640 Chess Wizardry: The New ABC of Chess Problems 1996
3202 Complete Mansfield/I 1996
4054 Complete Mansfield/III 1999
102 Probleemblad 2001
14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Rxb7#
    • 1...Bg3
      • 2.Sd5#
    • 1...d5
      • 2.Qg6#
    • 1...d6
      • 2.Rc6#
  • Tries
    • 1.Qg6+?
      • 1...d6
        • 2.Rc6#
        • 2.Qxd6#
      • 1...Qe6+!
    • 1.Qxb3+?
      • 1...Bb4
        • 2.Sd5#
      • 1...Bxb3!
  • Keys
    • 1.Bh2!
      • threat
        • 2.Bc7#
      • 1...Ra8
        • 2.Rxb7#
      • 1...Bc3
        • 2.Sc4#
      • 1...Bg3
        • 2.Sd5#
      • 1...d5
        • 2.Qg6#
      • 1...d6
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(h);N_GUARD::R1(I),XS(i)
    • B(a);N_PINS(E)::S(E)
    • P(j);N_GUARD::QAR(A)
    • P(j);N_GUARD::R1(B)
  • Tries
    • Try
      • Q(A);CHECK,N_PINQ(c)
      • Refutation
        • Q(c);CHECK,N_PINS(E),P_SPINQ(c)
    • Try
      • Q(A);CHECK,N_SPINS(E),XQ(c)
      • Vars
        • B(a);P_SPINB(a)::S(E)
      • Refutation
        • B(b);XQ(A)
  • Actual
    • B(C);
    • Threat
      • B(C)
    • Vars
      • R(h);N_GUARD::R1(I),XS(i)
      • B(a);N_PINS(E)::S(E)
      • P(j);N_GUARD::QAR(A)
      • P(j);N_GUARD::R1(B)
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Developed and maintained by Brian Stephenson.
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