MESON Chess Problem Database

Problem Display
PID: 7152 (5B2/1K6/2N5/3k1P2/4b2p/3P4/nP4P1/7Q w - - 0 1)

Reitman, Mark

Probleemblad, 1998

5B2/1K6/2N5/3k1P2/4b2p/3P4/nP4P1/7Q

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bxg2
      • 2.Qxg2#
  • Tries
    • 1.Qd1?
      • threat
        • 2.Qb3#
      • 1...Bxd3
        • 2.Qxd3#
      • 1...Sc1!
    • 1.Qe1?
      • threat
        • 2.Qa5#
        • 2.Qxe4#
      • 1...Bxg2
        • 2.Qa5#
        • 2.Qe5#
        • 2.Qe6#
      • 1...Bxd3
        • 2.Qe6#
      • 1...Bxf5
        • 2.Qe5#
      • 1...Bf3
        • 2.Qa5#
        • 2.Qe5#
        • 2.Qe6#
      • 1...Sb4
        • 2.Qxe4#
      • 1...Sc3!
    • 1.Qg1?
      • threat
        • 2.Qd4#
        • 2.Qc5#
      • 1...Bxd3
        • 2.Qd4#
      • 1...Bxf5!
  • Keys
    • 1.Qxh4!
      • threat
        • 2.Qd8#
        • 2.Qxe4#
      • 1...Bxg2
        • 2.Qd8#
        • 2.Qc4#
        • 2.Qd4#
      • 1...Bxd3
        • 2.Qd4#
      • 1...Bxf5
        • 2.Qc4#
      • 1...Sc3
        • 2.Qd8#
      • 1...Bf3
        • 2.Qd8#
        • 2.Qc4#
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(b);OGATE,P_SPINB(b),XP(C)::QAB(A),XB(b)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • B(b);OGATE,P_SPINB(b),XP(D)::QAR2(A),XB(b)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);OGATE,XP(D)::QAB1(A)
        • B(b);OGATE,XP(E)::QAR1(A)
        • S(a);::QAB1(A),XB(b)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);XP(D)::QAR1(A)
      • Refutation
        • B(b);XP(E)
  • Actual
    • Q(A);XP(c)
    • Threat
      • DUALS(2)
    • Vars
      • B(b);OGATE,XP(D)::QAR1(A)
      • B(b);OGATE,XP(E)::QAB1(A)
      • S(a);::QAR(A)
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