MESON Chess Problem Database

Problem Display
PID: 243122 (1B2K3/3pb3/4k1p1/3b4/4P1N1/5p2/8/4Q3 w - - 0 1)

Armeni, Alberto

Pat a Mat, 2015

1B2K3/3pb3/4k1p1/3b4/4P1N1/5p2/8/4Q3

#2

5 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe4
      • 2.Qxe4#
  • Tries
    • 1.Qd2?
      • threat
        • 2.Qxd5#
      • 1...Bxe4
        • 2.Qxd7#
      • 1...Ba2
        • 2.Qxd7#
      • 1...Bb3
        • 2.Qxd7#
      • 1...Bc4
        • 2.Qxd7#
      • 1...Bb7
        • 2.Qxd7#
      • 1...Ba8
        • 2.Qxd7#
      • 1...Bc6!
    • 1.Qg3?
      • threat
        • 2.Qe5#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Bf6
        • 2.Qd6#
      • 1...d6!
    • 1.Qa5?
      • threat
        • 2.Qxd5#
      • 1...Bxe4
        • 2.Qe5#
      • 1...Ba2
        • 2.Qe5#
      • 1...Bb3
        • 2.Qe5#
      • 1...Bc4
        • 2.Qe5#
      • 1...Bc6
        • 2.Qe5#
      • 1...Bb7
        • 2.Qe5#
      • 1...Ba8
        • 2.Qe5#
      • 1...Bc5!
    • 1.Qa1?
      • threat
        • 2.Qe5#
      • 1...Bd6
        • 2.Qf6#
      • 1...Bf6
        • 2.Qxf6#
      • 1...d6!
    • 1.Qd1?
      • threat
        • 2.Qxd5#
      • 1...Bxe4
        • 2.Qxd7#
      • 1...Ba2
        • 2.Qxd7#
      • 1...Bb3
        • 2.Qxd7#
      • 1...Bc4
        • 2.Qxd7#
      • 1...Bb7
        • 2.Qxd7#
      • 1...Ba8
        • 2.Qxd7#
      • 1...Bc6!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qe5#
      • 1...Bd6
        • 2.Qf6#
      • 1...Bf6
        • 2.Qxf6#
      • 1...d6
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(b);OGATE,P_SPINB(b),XP(B)::QAR2(A),XB(b)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A),XB(b)
      • Vars
        • B(b);OGATE,XP(B)::QAB1(A),XP(e)
        • B(b);OGATE::QAB1(A),XP(e)
      • Refutation
        • B(b);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • B(f);N_GUARD::QAR1(A),XB(f)
        • B(f);N_GUARD::QAR1(A)
      • Refutation
        • P(e);
    • Try
      • Q(A);
      • Threat
        • QAB1(A),XB(b)
      • Vars
        • B(b);OGATE,XP(B)::QAR1(A)
        • B(b);OGATE::QAR1(A)
      • Refutation
        • B(f);
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • B(f);N_GUARD::QAR1(A)
        • B(f);N_GUARD::QAR1(A),XB(f)
      • Refutation
        • P(e);
    • Try
      • Q(A);
      • Threat
        • QAB1(A),XB(b)
      • Vars
        • B(b);OGATE,XP(B)::QAB1(A),XP(e)
        • B(b);OGATE::QAB1(A),XP(e)
      • Refutation
        • B(b);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • B(f);N_GUARD::QAR1(A)
      • B(f);N_GUARD::QAR1(A),XB(f)
      • P(e);OGATEB::QAB(A)
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