MESON Chess Problem Database

Problem Display
PID: 80014 (2B1b1q1/3n2np/4R1P1/3ppkNP/3r3B/p2N2Q1/K1Ppr3/8 w - - 0 1)

Savournin, Jacques

La Cle, 1971

2B1b1q1/3n2np/4R1P1/3ppkNP/3r3B/p2N2Q1/K1Ppr3/8

#2

10 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Rxe5#
    • 1...e4
      • 2.Qf4#
      • 2.Qh3#
  • Tries
    • 1.Rxe5+?
      • 1...Kf6
        • 2.Se4#
        • 2.Sxh7#
      • 1...Rxe5!
  • Keys
    • 1.Se4!
      • threat
        • 2.Rxe5#
      • 1...Kxe4
        • 2.Qf4#
      • 1...Kxe6
        • 2.Qxe5#
      • 1...Qxe6
        • 2.Qf3#
      • 1...Rexe4
        • 2.Rf6#
      • 1...Rdxe4
        • 2.Rf6#
      • 1...Sxe6
        • 2.Sd6#
      • 1...dxe4
        • 2.Qh3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • S(h);SBLOCK::B(J)+R(H),DCHECK,XP(f)
  • Tries
    • Try
      • R(H);CHECK,P_PINS(h),XP(f)
      • Refutation
        • R(b);XR(H)
  • Actual
    • S(F);
    • Threat
      • R1(H),XP(f)
    • Vars
      • K(g);P_SPINP(f),S_FLIGHT,XS(F)::QAR1(D)
      • K(g);P_SPINS(h),S_FLIGHT,XR(H)::QAR1(D),XP(f)
      • Q(l);SBLOCK,XR(H)::QAR2(D)
      • R(b);SBLOCK,XS(F)::R1(H)
      • R(d);SBLOCK,XS(F)::R1(H)
      • S(i);SBLOCK,XR(H)::S(F)
      • P(e);P_PINR(H),SBLOCK,XS(F)::QAB(D)
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