MESON Chess Problem Database

Problem Display
PID: 79989 (b3N1K1/7Q/4p3/2pk4/2p1pb2/r4R2/3B2B1/3R4 w - - 0 1)

Savournin, Jacques

Het Belgisch Schaakbord (L'Echiquier Belge), 1989

b3N1K1/7Q/4p3/2pk4/2p1pb2/r4R2/3B2B1/3R4

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Bc3#
    • 1...Ke5
      • 2.Bxf4#
    • 1...e5
      • 2.Qd7#
  • Tries
    • 1.Bc3+?
      • 1...Bd2
        • 2.Qd7#
      • 1...Kc6!
    • 1.Bxf4+?
      • 1...Rd3
        • 2.Qd7#
      • 1...Kc6!
    • 1.Rxa3?
      • threat
        • 2.Qxe4#
      • 1...Kd4
        • 2.Bxf4#
      • 1...Ke5
        • 2.Bc3#
      • 1...e5
        • 2.Qd7#
      • 1...Kc6!
    • 1.Qd7+?
      • 1...Bd6
        • 2.Bc3#
        • 2.Qxd6#
      • 1...Ke5!
  • Keys
    • 1.Rb3!
      • threat
        • 2.Qxe4#
      • 1...Kd4
        • 2.Bxf4#
      • 1...Ke5
        • 2.Bc3#
      • 1...Kc6
        • 2.Bxe4#
      • 1...e5
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(f);P-FLIGHT::R(A)+B(B),DCHECK
    • K(f);P-FLIGHT::B(B),XB(d)
    • P(g);SBLOCK,S_CUTB(d)::QAR2(E)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • B(d);P_SPINB(d)::QAR2(E)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • B(B);CHECK,XB(d)
      • Vars
        • R(a);P_SPINR(a)::QAR2(E)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • R(D);P_PINP(c),XR(a)
      • Threat
        • QAB1(E),XP(c)
      • Vars
        • K(f);N_SPINP(c),P-FLIGHT::R(A)+B(B),XB(d)
        • K(f);N_SPINP(c),P-FLIGHT::B(B)
        • P(g);SBLOCK,S_CUTB(d)::QAR2(E)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • R(D);P_PINP(c)
    • Threat
      • QAB1(E),XP(c)
    • Vars
      • K(f);N_SPINP(c),P-FLIGHT::R(A)+B(B),XB(d)
      • K(f);N_SPINP(c),P-FLIGHT::B(B)
      • K(f);S_FLIGHT::B(C),XP(c)
      • P(g);SBLOCK,S_CUTB(d)::QAR2(E)
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Developed and maintained by Brian Stephenson.
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