MESON Chess Problem Database

Problem Display
PID: 15439 (3br3/q1p2N2/p1p5/2k2B1R/Pp1p4/3pR3/1Q6/6BK w - - 0 1)

Savournin, Jacques

20th Place, 02. WCCT, 1980-1983

3br3/q1p2N2/p1p5/2k2B1R/Pp1p4/3pR3/1Q6/6BK

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Bxd3#
    • 1...Kd5
      • 2.Be6#
    • 1...Kb6
      • 2.Qxb4#
  • Tries
    • 1.Be6+?
      • 1...Kb6
        • 2.Qxb4#
      • 1...Bg5!
    • 1.Re5+?
      • 1...Kb6
        • 2.Qxb4#
      • 1...Rxe5
        • 2.Qxd4#
      • 1...Kc4!
    • 1.Qc1+?
      • 1...Kd5
        • 2.Be6#
      • 1...Kb6!
    • 1.Qxb4+?
      • 1...Kd5
        • 2.Be6#
      • 1...Kxb4!
  • Keys
    • 1.Re7!
      • threat
        • 2.Qxd4#
      • 1...Kc4
        • 2.Be6#
      • 1...Kd5
        • 2.Bxd3#
      • 1...Kb6
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(d);P-FLIGHT::B(F),XP(a)
    • K(d);P-FLIGHT::R(G)+B(F),DCHECK
    • K(d);P_SPINP(b),S_FLIGHT::QAR2(C),XP(b)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • K(d);P_SPINP(b),S_FLIGHT::QAR2(C),XP(b)
      • Refutation
        • B(i);P_SPINB(i)
    • Try
      • R(D);CHECK,P_PINP(c)
      • Vars
        • K(d);N_SPINP(c),P_SPINP(b),S_FLIGHT::QAR2(C),XP(b)
        • R(j);XR(D)::QAB1(C),XP(c)
      • Refutation
        • K(d);N_SPINP(c),P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);P-FLIGHT::R(G)+B(F),DCHECK
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(C);CHECK,XP(b)
      • Vars
        • K(d);P-FLIGHT::R(G)+B(F),DCHECK
      • Refutation
        • K(d);S_FLIGHT,XQ(C)
  • Actual
    • R(D);P_PINP(c)
    • Threat
      • QAB1(C),XP(c)
    • Vars
      • K(d);N_SPINP(c),P-FLIGHT::B(F)
      • K(d);N_SPINP(c),P-FLIGHT::R(G)+B(F),XP(a)
      • K(d);N_SPINP(c),P_SPINP(b),S_FLIGHT::QAR2(C),XP(b)
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