MESON Chess Problem Database

Problem Display
PID: 58194 (3BB3/3RP3/2k5/4pK2/1qP5/2bN4/8/1R6 w - - 0 1)

Bouchez, Laurent

Scacco!, 1997

3BB3/3RP3/2k5/4pK2/1qP5/2bN4/8/1R6

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Qa3
      • 2.Rb6#
      • 2.Rd4#
      • 2.Rd5#
    • 1...Qa5
      • 2.Rd4#
      • 2.Rd5#
    • 1...Qc5
      • 2.Rd4#
      • 2.Rd5#
    • 1...Qd6
      • 2.Rb6#
      • 2.Rc7#
    • 1...Qxe7
      • 2.Rb6#
    • 1...Qa4
      • 2.Rb6#
      • 2.Rd4#
      • 2.Rd5#
    • 1...Qxc4
      • 2.Rb6#
      • 2.Rd4#
    • 1...Qb5
      • 2.cxb5#
    • 1...Qb6
      • 2.Rxb6#
    • 1...Qb8
      • 2.Rd4#
      • 2.Rd5#
  • Tries
    • 1.Sxe5+?
      • 1...Kc5
        • 2.Rd5#
      • 1...Bxe5!
    • 1.Rxb4?
      • threat
        • 2.Rb6#
        • 2.Rd4#
        • 2.Rd5#
      • 1...Bd4
        • 2.Rxd4#
        • 2.Rd5#
      • 1...Bxb4!
    • 1.Rc7+?
      • 1...Kd6
        • 2.Rc6#
      • 1...Kb6!
  • Keys
    • 1.Ke6!
      • threat
        • 2.Ra7#
      • 1...Qd6+
        • 2.Rxd6#
      • 1...Qxe7+
        • 2.Rxe7#
      • 1...Qxc4+
        • 2.Rd5#
      • 1...Qb7
        • 2.Rd6#
        • 2.Rdxb7#
        • 2.Rc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(b);OGATE,XP(F)::R1(A)
    • Q(b);OGATE::P(C),XQ(b)
    • Q(b);OGATE::R1(A),XQ(b)
  • Tries
    • Try
      • S(B);CHECK,XP(c)
      • Vars
        • K(d);P-FLIGHT::R1(E)
      • Refutation
        • B(a);XS(B)
    • Try
      • R(A);XQ(b)
      • Threat
        • DUALS(3)
      • Refutation
        • B(a);XR(A)
    • Try
      • R(E);CHECK
      • Vars
        • K(d);P-FLIGHT::R1(E)
      • Refutation
        • K(d);P-FLIGHT,P_SPINQ(b)
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • B(H)+R(E)
    • Vars
      • Q(b);CHECK::B(H)+R(E),DCHECK,XQ(b)
      • Q(b);CHECK,OGATE,XP(F)::B(H)+R(E),XQ(b)
      • Q(b);CHECK,XP(C)::B(H)+R(E)
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