MESON Chess Problem Database

Problem Display
PID: 102449 (5B2/b4R2/3Nb3/1Qnpk1Pn/4Pp2/1B2RP2/4N3/6K1 w - - 0 1)

Michel, Francois

Savalle, Andre

L'Echiquier de Turenne, 1958

5B2/b4R2/3Nb3/1Qnpk1Pn/4Pp2/1B2RP2/4N3/6K1

#2

11 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sxb3
      • 2.Sc4#
    • 1...Sd3
      • 2.Sc4#
    • 1...Sa4
      • 2.Sc4#
    • 1...Sxe4
      • 2.Sc4#
    • 1...Sa6
      • 2.Sc4#
    • 1...Sb7
      • 2.Sc4#
    • 1...Sd7
      • 2.Sc4#
    • 1...dxe4
      • 2.Rxe4#
  • Tries
    • 1.Bxd5?
      • threat
        • 2.Sc4#
        • 2.Qb2#
      • 1...Sxe4
        • 2.Sc4#
      • 1...Sb3
        • 2.Sc4#
      • 1...Sd3
        • 2.Sc4#
      • 1...Sa4
        • 2.Sc4#
      • 1...Sa6
        • 2.Sc4#
      • 1...Sb7
        • 2.Sc4#
      • 1...Sd7
        • 2.Sc4#
      • 1...Bxd5!
    • 1.exd5+?
      • 1...Se4
        • 2.Sc4#
      • 1...fxe3!
  • Keys
    • 1.Re7!
      • threat
        • 2.Sf7#
      • 1...Kxd6
        • 2.e5#
      • 1...Sxe4
        • 2.Qxd5#
      • 1...dxe4
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • S(b);P_PINR(D),P_SPINP(c),XB(C)::S(I)
    • S(b);P_PINR(D),P_SPINP(c)::S(I)
    • S(b);P_PINR(D),P_SPINP(c),P_SPINS(b),XP(F)::S(I)
    • P(c);OGATE,P_SPINP(c),P_SPINS(b),XP(F)::R1(D),XP(c)
  • Tries
    • Try
      • B(C);XP(c)
      • Threat
        • DUALS(2)
      • Vars
        • S(b);P_PINR(D),P_SPINS(b),XP(F)::S(I)
        • S(b);P_PINR(D)::S(I)
      • Refutation
        • B(f);XB(C)
    • Try
      • P(F);CHECK,XP(c)
      • Vars
        • S(b);P_PINR(D),P_SPINS(b)::S(I)
      • Refutation
        • P(a);XR(D)
  • Actual
    • R(J);P_PINB(f)
    • Threat
      • S(I)
    • Vars
      • K(d);N_SPINB(f),OGATE,S_FLIGHT,XS(I)::P(F)
      • S(b);OGATE,P_PINR(D),P_SPINP(c),P_SPINS(b),XP(F)::QAR1(G),XP(c)
      • P(c);P_SPINP(c),P_SPINS(b),XP(F)::R1(J),XB(f)
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