MESON Chess Problem Database

Problem Display
PID: 182640 (1NqBB3/8/PQpkp3/1P1p4/rb6/p1pN4/8/K7 w - - 0 1)

Morse, Christopher Jeremy

Problem Observer, 2015

1NqBB3/8/PQpkp3/1P1p4/rb6/p1pN4/8/K7

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qxa6
      • 2.Qc7#
    • 1...Qc7
      • 2.Qxc7#
    • 1...Qxb8
      • 2.Qxc6#
      • 2.Qxb8#
    • 1...Qxd8
      • 2.Qxd8#
    • 1...Ba5
      • 2.Qc5#
    • 1...Bc5
      • 2.Qxc5#
    • 1...d4
      • 2.Qxd4#
  • Tries
    • 1.Qe3?
      • threat
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...Qxd8!
    • 1.Qd4?
      • threat
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...Qxd8!
  • Keys
    • 1.bxc6!
      • threat
        • 2.c7#
      • 1...Qxa6
        • 2.Qc7#
      • 1...Qxc6
        • 2.Qxc6#
      • 1...Qxb8
        • 2.Qxb8#
      • 1...Qxd8
        • 2.Qxd8#
      • 1...Rxa6
        • 2.Qxb4#
      • 1...d4
        • 2.Qxd4#
      • 1...Qb7
        • 2.cxb7#
      • 1...Qd7
        • 2.cxd7#
      • 1...Qc7
        • 2.Qxc7#
      • 1...Ba5
        • 2.Qc5#
      • 1...Bc5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • Q(i);N_GUARD,XP(D)::QAB1(E)
    • Q(i);N_GUARD::QAB1(E),XQ(i)
    • Q(i);OGATE,XB(G)::QAR2(E),XQ(i)
    • B(d);N_GUARD::QAB1(E)
    • B(d);N_GUARD::QAB1(E),XB(d)
    • P(e);OGATEB::QAR2(E),XP(e)
  • Tries
    • Try
      • Q(E);N_PINP(f)
      • Threat
        • QAB1(E)
      • Vars
        • P(h);::QAB1(E),XP(h)
      • Refutation
        • Q(i);XB(G)
    • Try
      • Q(E);N_PINP(f),P_PINP(e)
      • Threat
        • QAB1(E)
      • Vars
        • P(h);::QAB1(E),XP(h)
      • Refutation
        • Q(i);XB(G)
  • Actual
    • P(C);XP(f)
    • Threat
      • QAR(E)+P(C)
    • Vars
      • Q(i);N_GUARD,XP(D)::QAB1(E)
      • Q(i);OGATE,P_SPINQ(i),XP(C)::QAR1(E),XQ(i)
      • Q(i);OGATE,XS(F)::QAB(E),XQ(i)
      • Q(i);OGATE,XB(G)::QAR2(E),XQ(i)
      • R(c);N_GUARD,XP(D)::QAB(E),XB(d)
      • P(e);OGATEB::QAR2(E),XP(e)
      • Q(i);OGATE::QAR(E)+P(C),XQ(i)
      • Q(i);N_GUARD::QAB1(E),XQ(i)
      • B(d);N_GUARD::QAB1(E)
      • B(d);N_GUARD::QAB1(E),XB(d)
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