MESON Chess Problem Database

Problem Display
PID: 28824 (b7/p5pK/r2P2P1/p2kN2R/R3N3/Bp3p1Q/8/br3B2 w - - 0 1)

Savournin, Jacques

1st HM., StrateGems, 2001

b7/p5pK/r2P2P1/p2kN2R/R3N3/Bp3p1Q/8/br3B2

#2

10 + 10

145 StrateGems 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Rb2
      • 2.Sc3#
    • 1...Bc3
      • 2.Sxc3#
    • 1...b2
      • 2.Sc3#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Qe6#
      • 1...Kxd6
        • 2.Qd7#
      • 1...Rxd6
        • 2.Qxf3#
      • 1...Bxe5!
    • 1.Sg5?
      • threat
        • 2.Qe6#
      • 1...Kxe5
        • 2.Qe6#
      • 1...Bxe5
        • 2.Qxf3#
      • 1...Rxd6!
    • 1.Sc6+?
      • 1...Be5
        • 2.Se7#
      • 1...Kxc6!
    • 1.Qd7?
      • threat
        • 2.Qf7#
      • 1...Rxd6
        • 2.Qxd6#
      • 1...Bxe5
        • 2.Sc3#
      • 1...Bd4!
    • 1.Qc8?
      • threat
        • 2.Qc4#
        • 2.Qg8#
      • 1...Rxd6
        • 2.Qc4#
      • 1...Bxe5
        • 2.Sc3#
        • 2.Qc4#
      • 1...Rc1
        • 2.Qg8#
      • 1...Rc6
        • 2.Qg8#
      • 1...Bc6
        • 2.Qg8#
      • 1...Bd4!
  • Keys
    • 1.Qxf3!
      • threat
        • 2.Qf7#
      • 1...Ke6
        • 2.Qf7#
      • 1...Rxf1
        • 2.Qxb3#
      • 1...Rxd6
        • 2.Sc5#
      • 1...Bxe5
        • 2.Sg5#
      • 1...Bd4
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • R(b);S_CUTB(a)::S(E)
    • B(a);N_GUARD::S(E),XB(a)
    • P(c);S_CUTB(a)::S(E)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB1(C)
      • Vars
        • K(f);OGATEB,P-FLIGHT,XP(H)::QAR1(C)
        • R(g);SBLOCK,XP(H)::QAB(C),XP(d)
      • Refutation
        • B(a);P_SPINB(a),XS(F)
    • Try
      • S(E);
      • Threat
        • QAB1(C)
      • Vars
        • K(f);P-FLIGHT,XS(F)::QAR1(C)
        • B(a);SBLOCK,XS(F)::QAB(C),XP(d)
      • Refutation
        • R(g);XP(H)
    • Try
      • S(F);CHECK
      • Vars
        • B(a);P_SPINB(a)::S(F)
      • Refutation
        • K(f);S_FLIGHT,XS(F)
    • Try
      • Q(C);
      • Threat
        • QAB(C)
      • Vars
        • R(g);OGATE,P_SPINR(g),XP(H)::QAR1(C),XR(g)
        • B(a);N_GUARD,P_SPINB(a),XS(F)::S(E)
      • Refutation
        • B(a);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(g);XP(H)::QAB1(C)
        • R(b);::QAB(C)
        • R(g);::QAB(C)
        • B(j);::QAB(C)
      • Refutation
        • B(a);
  • Actual
    • Q(C);XP(d)
    • Threat
      • QAB(C)
    • Vars
      • K(f);S_FLIGHT::QAB1(C)
      • R(b);N_GUARD,XB(A)::QAB(C),XP(c)
      • R(g);SBLOCK,XP(H)::QAB(C)+S(E)
      • B(a);P_SPINB(a),SBLOCK,XS(F)::QAB(C)+S(E)
      • B(a);SBLOCK::B(A)
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