MESON Chess Problem Database

Problem Display
PID: 80912 (n7/3R1P2/5bQ1/4pr2/PNk5/B3pN2/1P6/K2B4 w - - 0 1)

Savournin, Jacques

Comm., diagrammes, 1979

n7/3R1P2/5bQ1/4pr2/PNk5/B3pN2/1P6/K2B4

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf3
      • 2.Qc2#
    • 1...Rf4
      • 2.Qc2#
    • 1...Rg5
      • 2.Qc2#
    • 1...Rh5
      • 2.Qc2#
    • 1...Bh4
      • 2.Qc6#
    • 1...Bg5
      • 2.Qc6#
    • 1...Bg7
      • 2.Qc6#
    • 1...Bd8
      • 2.Qc6#
    • 1...Bh8
      • 2.Qc6#
    • 1...Sb6
      • 2.Rc7#
    • 1...Sc7
      • 2.Rxc7#
  • Tries
    • 1.Sxe5+?
      • 1...Rxe5
        • 2.Qc2#
      • 1...Bxe5
        • 2.Qc6#
      • 1...Kc5!
    • 1.Sd5?
      • threat
        • 2.Sxe3#
      • 1...Rxf3
        • 2.Qe4#
      • 1...Bg5
        • 2.Qa6#
      • 1...e2
        • 2.Se3#
      • 1...Kd3!
    • 1.Sc6?
      • threat
        • 2.Sa5#
      • 1...Bd8
        • 2.Qe6#
      • 1...e4!
    • 1.Qxf5?
      • threat
        • 2.Qc2#
      • 1...e4
        • 2.Qb5#
        • 2.Qd5#
      • 1...Kc5!
    • 1.Qxf6?
      • threat
        • 2.Qc6#
      • 1...Kc5
        • 2.Qc6#
      • 1...e4
        • 2.Qc3#
        • 2.Qd4#
      • 1...Rxf6!
    • 1.b3+?
      • 1...Kc3
        • 2.Sa2#
        • 2.Rd3#
      • 1...Kc5!
  • Keys
    • 1.Sc2!
      • threat
        • 2.Sxe3#
      • 1...Kb3
        • 2.Sxe3#
      • 1...Rxf3
        • 2.Qd3#
      • 1...Bg5
        • 2.Qe6#
      • 1...e2
        • 2.Se3#
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • R(d);OGATE,XS(E)::QAR2(H)
    • R(d);OGATE::QAR2(H)
    • B(e);OGATE::QAR2(H)
    • S(f);N_GUARD::R(I)
    • S(f);N_GUARD::R(I),XS(f)
  • Tries
    • Try
      • S(E);CHECK,XP(c)
      • Vars
        • R(d);OGATE,XS(E)::QAR2(H)
        • B(e);OGATE,P_PINP(C),XS(E)::QAR2(H)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(G);
      • Threat
        • S(G),XP(a)
      • Vars
        • R(d);OGATE,XS(E)::QAR2(H)
        • B(e);OGATE::QAB(H)
        • P(a);::S(G)
      • Refutation
        • K(b);P_SPINR(d),S_FLIGHT
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • B(e);OGATE::QAB(H)
      • Refutation
        • P(c);P_PINP(C)
    • Try
      • Q(H);XR(d)
      • Threat
        • QAR2(H)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(c)
    • Try
      • Q(H);XB(e)
      • Threat
        • QAR2(H)
      • Vars
        • K(b);P-FLIGHT::QAR1(H)
      • Refutation
        • R(d);XQ(H)
    • Try
      • P(C);CHECK
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(G);
    • Threat
      • S(G),XP(a)
    • Vars
      • K(b);S_FLIGHT::B(B)+S(G),XP(a)
      • R(d);OGATE,XS(E)::QAB1(H)
      • B(e);OGATE::QAB(H)
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