MESON Chess Problem Database

Problem Display
PID: 145478 (4Q3/1R2K2B/2pPP3/p2kpp2/Rp6/4Pp2/1N3B2/1N6 w - - 0 1)

Phelps, Francis Bradley

New Orleans Times-Democrat, 1888

(First published on Sun Jan 15 1888)

4Q3/1R2K2B/2pPP3/p2kpp2/Rp6/4Pp2/1N3B2/1N6

#2

11 + 7

14867 BCPS Library 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Sc3#
      • 2.Qxc6#
    • 1...Kc5
      • 2.Rxa5#
      • 2.e4#
    • 1...f4
      • 2.e4#
  • Tries
    • 1.Sc3+?
      • 1...Kc5
        • 2.Rxa5#
        • 2.e4#
      • 1...bxc3!
    • 1.Bxf5?
      • threat
        • 2.e4#
      • 1...Kc5
        • 2.Rxa5#
        • 2.e4#
      • 1...e4!
    • 1.Rxa5+?
      • 1...Ke4
        • 2.Sd2#
        • 2.Rxb4#
        • 2.Qxc6#
      • 1...c5!
    • 1.Rb5+?
      • 1...Ke4
        • 2.Sd2#
        • 2.Sc3#
        • 2.Qxc6#
      • 1...c5
        • 2.Qa8#
      • 1...cxb5!
    • 1.Rb6?
      • threat
        • 2.Qxc6#
      • 1...Ke4
        • 2.Sc3#
        • 2.Qxc6#
      • 1...Kc5
        • 2.Qxc6#
        • 2.e4#
      • 1...c5
        • 2.Qc6#
        • 2.Qa8#
      • 1...e4!
    • 1.Rc7?
      • threat
        • 2.Qxc6#
      • 1...Ke4
        • 2.Sc3#
        • 2.Qxc6#
      • 1...Kc5
        • 2.Qxc6#
      • 1...c5
        • 2.Qc6#
        • 2.Qa8#
      • 1...e4!
  • Keys
    • 1.Qa8!
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc5
        • 2.Rxa5#
        • 2.Qxa5#
        • 2.e4#
      • 1...b3
        • 2.Rb5#
      • 1...e4
        • 2.Rb5#
      • 1...f4
        • 2.Rb5#
        • 2.e4#
      • 1...c5
        • 2.Rbxb4#
        • 2.Rb5#
        • 2.Rb6#
        • 2.Ra7#
        • 2.Rc7#
        • 2.Rd7#
        • 2.Rb8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(f);N_GUARD::P(D)
  • Tries
    • Try
      • S(A);CHECK
      • Refutation
        • P(b);XS(A)
    • Try
      • B(J);XP(f)
      • Threat
        • P(D)
      • Refutation
        • P(e);
    • Try
      • R(E);CHECK,XP(c)
      • Refutation
        • P(g);P_SPINP(g)
    • Try
      • R(H);CHECK
      • Vars
        • P(g);P_SPINP(g)::QAB(K)
      • Refutation
        • P(g);XR(H)
    • Try
      • R(H);
      • Threat
        • QAB1(K),XP(g)
      • Refutation
        • P(e);
    • Try
      • R(H);
      • Threat
        • QAB1(K),XP(g)
      • Vars
        • K(d);P-FLIGHT,P_SPINP(g)::QAR1(K),XP(g)
      • Refutation
        • P(e);
  • Actual
    • Q(K);
    • Vars
      • K(d);P_SPINP(b),S_FLIGHT::S(A)
      • P(b);::R(H)
      • P(e);SBLOCK::R(H)
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