MESON Chess Problem Database

Problem Display
PID: 199892 (8/4p3/8/QB1k2r1/2N1N3/4PPb1/8/1K6 w - - 0 1)

Stabenov, Albert

Haagsche Courant, 1897

8/4p3/8/QB1k2r1/2N1N3/4PPb1/8/1K6

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...e6
      • 2.Qd2#
      • 2.Qa8#
  • Tries
    • 1.Sb6+?
      • 1...Ke5
        • 2.Bc4#
        • 2.Bd7#
      • 1...Ke6!
    • 1.Sc3+?
      • 1...Kc5
        • 2.Qa3#
      • 1...Ke6!
    • 1.Qb6?
      • threat
        • 2.Sc3#
        • 2.Qc6#
      • 1...Rg6
        • 2.Sc3#
      • 1...Be1
        • 2.Qc6#
      • 1...Be5
        • 2.Qc6#
      • 1...Bd6!
  • Keys
    • 1.Se5!
      • threat
        • 2.Bc4#
        • 2.Bd7#
      • 1...Kxe5
        • 2.Bc4#
        • 2.Bd7#
      • 1...Ke6
        • 2.Bd7#
      • 1...Rxe5
        • 2.Qa2#
      • 1...Bxe5
        • 2.Qa2#
      • 1...Be1
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::S(E)
        • B(a);::QAB1(F)
      • Refutation
        • B(a);
  • Actual
    • S(D);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);S_FLIGHT::B(G)
      • R(c);SBLOCK,XS(D)::QAB(F)
      • B(a);SBLOCK,XS(D)::QAB(F)
      • B(a);::QAR(F)+B(G),DCHECK
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