MESON Chess Problem Database

Problem Display
PID: 18887 (1B3R2/4pn1B/N1P1kb2/3rP2r/6R1/7P/b5Q1/5nK1 w - - 0 1)

Morice, Jean

1st Prize, BCPS-40 JT, 1958-1960

1B3R2/4pn1B/N1P1kb2/3rP2r/6R1/7P/b5Q1/5nK1

#2

10 + 8

268 Chess Life 1960
3147 Chess Problems: Introduction to an Art 1963
273 Mat Plus 1994
721 Variantim 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Sc5#
    • 1...Rd2
      • 2.Sc5#
    • 1...Rd3
      • 2.Sc5#
    • 1...Rd4
      • 2.Sc5#
    • 1...Rc5
      • 2.Sxc5#
    • 1...Rd7
      • 2.Sc5#
    • 1...Rd8
      • 2.Sc5#
  • Tries
    • 1.Re4?
      • threat
        • 2.Sc7#
      • 1...Rdxe5
        • 2.Qxa2#
      • 1...Rhxe5
        • 2.Qg4#
      • 1...Rxh7
        • 2.Qg4#
      • 1...Bxe5
        • 2.Qg6#
      • 1...Sxe5
        • 2.Qg8#
      • 1...Rd7!
    • 1.Qxd5+?
      • 1...Bxd5
        • 2.Sc5#
      • 1...Kxd5!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Sc7#
      • 1...Rdxe5
        • 2.Sc5#
      • 1...Rhxe5
        • 2.Bf5#
      • 1...Bxe5
        • 2.Rg6#
      • 1...Sxe5
        • 2.Bg8#
      • 1...Rd7
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • R(c);N_GUARD::S(F)
    • R(c);N_GUARD::S(F),XR(c)
  • Tries
    • Try
      • R(D);
      • Threat
        • S(F)
      • Vars
        • R(c);OGATEB,P_SPINR(c),XP(E)::QAB(B),XB(b)
        • R(d);N_GUARD,P_SPINR(d),XP(E)::QAB(B)
        • R(d);N_GUARD,XB(H)::QAB(B)
        • B(f);OGATEB,P_SPINB(f),XP(E)::QAR2(B)
        • S(h);OGATEB,P_SPINS(h),XP(E)::QAB(B)
      • Refutation
        • R(c);
    • Try
      • Q(B);CHECK,XR(c)
      • Vars
        • B(b);SBLOCK,XQ(B)::S(F)
      • Refutation
        • K(e);S_FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Threat
      • S(F)
    • Vars
      • R(c);N_GUARD,P_SPINR(c),XP(E)::S(F)
      • R(d);N_GUARD,P_SPINR(d),XP(E)::B(H)
      • B(f);OGATEB,P_SPINB(f),XP(E)::R(D)
      • S(h);OGATEB,P_SPINS(h),XP(E)::B(H)
      • R(c);N_GUARD::S(F)
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