MESON Chess Problem Database

Problem Display
PID: 155987 (1n6/3p4/4p3/1RP1kPnN/1BK3p1/3BP2p/1b3P1P/7Q w - - 0 1)

Branch, William Shelley

Cheltenham Examiner, 0000

1n6/3p4/4p3/1RP1kPnN/1BK3p1/3BP2p/1b3P1P/7Q

#2

11 + 8

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ba1
      • 2.Qxa1#
    • 1...Bc1
      • 2.Bc3#
    • 1...Ba3
      • 2.Bc3#
    • 1...Bc3
      • 2.Bxc3#
    • 1...Bd4
      • 2.exd4#
    • 1...Se4
      • 2.Qxe4#
    • 1...Sf7
      • 2.Qe4#
    • 1...Sh7
      • 2.Qe4#
    • 1...g3
      • 2.f4#
    • 1...exf5
      • 2.Qd5#
    • 1...d5+
      • 2.cxd5 ep#
    • 1...d6
      • 2.cxd6#
  • Tries
    • 1.Qg2?
      • threat
        • 2.Qg3#
      • 1...d5+
        • 2.cxd5 ep#
      • 1...exf5
        • 2.Qd5#
      • 1...Se4
        • 2.Qxe4#
      • 1...g3
        • 2.Qxg3#
        • 2.f4#
      • 1...hxg2!
  • Keys
    • 1.Qa8!
      • 1...d5+
        • 2.cxd5 ep#
      • 1...exf5
        • 2.Qd5#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sf3
        • 2.Qe4#
      • 1...Ba1
        • 2.Qxa1#
      • 1...Bc1
        • 2.Bc3#
      • 1...Ba3
        • 2.Bc3#
      • 1...Bc3
        • 2.Bxc3#
      • 1...Bd4
        • 2.exd4#
      • 1...Sf7
        • 2.Qe4#
      • 1...Sh7
        • 2.Qe4#
      • 1...Sa6
        • 2.Qh8#
      • 1...Sc6
        • 2.Qh8#
      • 1...g3
        • 2.f4#
      • 1...d6
        • 2.cxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATEB::QAB(A),XB(a)
    • B(a);N_GUARD::B(F)
    • B(a);N_GUARD::B(F),XB(a)
    • B(a);OGATE::P(E),XB(a)
    • S(e);N_GUARD::QAR1(A),XS(e)
    • S(e);N_GUARD::QAR1(A)
    • P(c);N_GUARD::P(B)
    • P(f);N_GUARD,XP(J)::QAR1(A)
    • P(g);CHECK,OGATE::R(H)+P(I),XP(g),EP
    • P(g);OGATE::R(H)+P(I),XP(g)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • P(g);CHECK,OGATE::R(H)+P(I),XP(g),EP
        • P(f);N_GUARD,XP(J)::QAR1(A)
        • S(e);N_GUARD::QAR1(A),XS(e)
      • Refutation
        • P(b);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • P(g);CHECK,OGATE::R(H)+P(I),XP(g),EP
      • P(f);N_GUARD,XP(J)::QAR1(A)
      • S(e);N_GUARD::QAR1(A),XS(e)
      • S(e);N_GUARD::QAR1(A)
      • B(a);OGATEB::QAB(A),XB(a)
      • B(a);N_GUARD::B(F)
      • B(a);N_GUARD::B(F),XB(a)
      • B(a);OGATE::P(E),XB(a)
      • S(h);OGATE::QAB(A)
      • P(c);N_GUARD::P(B)
      • P(g);OGATE::R(H)+P(I),XP(g)
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