MESON Chess Problem Database

Problem Display
PID: 15434 (B7/1R1Q4/4P3/8/8/4bkP1/8/3K1N1R w - - 0 1)

van Dijk, Nils Gustav Gerard

15th Place, 02. WCCT, 1980-1983

B7/1R1Q4/4P3/8/8/4bkP1/8/3K1N1R

#2

8 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kg2
      • 2.Rb2#
    • 1...Ke4
      • 2.Rb5#
    • 1...Bf2
      • 2.Rb4#
  • Tries
    • 1.Rb5+?
      • 1...Kg4
        • 2.Rh4#
        • 2.e7#
      • 1...Kf2!
    • 1.Qd3?
      • 1...Kf2
        • 2.Qe2#
      • 1...Kg2
        • 2.Rb2#
        • 2.Rf7#
      • 1...Kg4!
    • 1.Qd4?
      • threat
        • 2.Rb2#
        • 2.Rf7#
      • 1...Kf2
        • 2.Rb2#
        • 2.Rf7#
      • 1...Kg2
        • 2.Rb2#
        • 2.Rf7#
      • 1...Bf4
        • 2.Rg7#
      • 1...Bxd4!
    • 1.Qd5+?
      • 1...Kg4
        • 2.Rh4#
        • 2.Qh5#
      • 1...Kf2!
  • Keys
    • 1.Qb5!
      • 1...Kf2
        • 2.Qe2#
      • 1...Kg2
        • 2.Rf7#
      • 1...Ke4
        • 2.Rd7#
      • 1...Kg4
        • 2.Qh5#
      • 1...Bc1
        • 2.Qe2#
      • 1...Bg1
        • 2.Qe2#
      • 1...Bd2
        • 2.Qe2#
      • 1...Bf2
        • 2.Rg7#
      • 1...Bd4
        • 2.Qe2#
      • 1...Bf4
        • 2.Qe2#
      • 1...Bc5
        • 2.Qe2#
      • 1...Bg5
        • 2.Qe2#
      • 1...Bb6
        • 2.Qe2#
      • 1...Bh6
        • 2.Qe2#
      • 1...Ba7
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::B(H)+R(F),DCHECK
    • K(b);S_FLIGHT::B(H)+R(F)
    • B(a);SBLOCK::B(H)+R(F)
  • Tries
    • Try
      • R(F);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(G);P_PINB(a)
      • Vars
        • K(b);N_SPINB(a),P-FLIGHT::QAR1(G)
      • Refutation
        • K(b);N_SPINB(a),S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::B(H)+R(F)
      • Refutation
        • B(a);XQ(G)
    • Try
      • Q(G);CHECK
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(G);
    • Vars
      • K(b);P-FLIGHT::QAR1(G)
      • K(b);S_FLIGHT::B(H)+R(F)
      • K(b);S_FLIGHT::QAB1(G)
      • B(a);::QAB1(G)
      • B(a);SBLOCK::B(H)+R(F)
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