MESON Chess Problem Database

Problem Display
PID: 109322 (6Nb/3B4/K6Q/2ppk3/3Rb3/3p2R1/1N6/8 w - - 0 1)

Savalle, Andre

La Populaire du Centre, 1959

6Nb/3B4/K6Q/2ppk3/3Rb3/3p2R1/1N6/8

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qxh8#
    • 1...Bh1
      • 2.Qf4#
    • 1...Bg2
      • 2.Qf4#
    • 1...Bf3
      • 2.Qf4#
    • 1...Bf5
      • 2.Qf4#
    • 1...Bg6
      • 2.Qf4#
    • 1...Bh7
      • 2.Qf4#
    • 1...Bf6
      • 2.Qxf6#
  • Tries
    • 1.Sc4+?
      • 1...dxc4
        • 2.Qd6#
      • 1...Kxd4!
    • 1.Se7?
      • threat
        • 2.Sc6#
      • 1...Kxd4
        • 2.Qxh8#
      • 1...Bg6
        • 2.Qf4#
      • 1...Bf6!
    • 1.Rxe4+?
      • 1...Kxe4
        • 2.Qe3#
      • 1...dxe4!
    • 1.Qf4+?
      • 1...Kxd4
        • 2.Rxd3#
      • 1...Kxf4!
  • Keys
    • 1.Qh2!
      • threat
        • 2.Rgxd3#
      • 1...Kxd4
        • 2.Qxh8#
      • 1...Kf4
        • 2.Sxd3#
      • 1...Kd6
        • 2.Rg7#
      • 1...Bf3
        • 2.Rgg4#
      • 1...d2
        • 2.Rgd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • K(e);S_FLIGHT,XR(C)::QAB(E),XB(f)
    • B(b);::QAB1(E)
    • B(f);N_GUARD::QAB1(E),XB(f)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • P(d);XS(A)::QAB1(E)
      • Refutation
        • K(e);S_FLIGHT,XR(C)
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • K(e);S_FLIGHT,XR(C)::QAB(E),XB(f)
        • B(b);::QAB1(E)
      • Refutation
        • B(f);
    • Try
      • R(C);CHECK,XB(b)
      • Vars
        • K(e);P-FLIGHT,XR(C)::QAR1(E)
      • Refutation
        • P(d);XR(C)
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);P_SPINB(b),S_FLIGHT,XR(C)::R1(B),XP(a)
      • Refutation
        • K(e);P_SPINB(b),S_FLIGHT,XQ(E)
  • Actual
    • Q(E);
    • Threat
      • QAB(E)+R(B),XP(a)
    • Vars
      • K(e);S_FLIGHT,XR(C)::QAB(E),XB(f)
      • K(e);P_SPINB(b),S_FLIGHT::S(A),XP(a)
      • K(e);P_SPINP(d),S_FLIGHT::QAB(E)+R(B)
      • B(b);::QAB(E)+R(B)
      • P(a);::QAB(E)+R(B)
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