MESON Chess Problem Database

Problem Display
PID: 75764 (5K2/7P/pP1RB3/1rkP1PRr/Qnp4p/2P1N3/p4B2/8 w - - 0 1)

Robert, Philippe

1st HM., The Macedonian Problemist, 2007

5K2/7P/pP1RB3/1rkP1PRr/Qnp4p/2P1N3/p4B2/8

#2

12 + 8

4901 Best Problems 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.Sxc4#
    • 1...Ra5
      • 2.Qxb4#
    • 1...Sc2
      • 2.Rc6#
    • 1...Sd3
      • 2.Rc6#
    • 1...Sc6
      • 2.Rxc6#
  • Tries
    • 1.Ke7?
      • threat
        • 2.Sd1#
        • 2.Sf1#
        • 2.Sc2#
        • 2.Sg2#
        • 2.Sg4#
      • 1...Sxd5+
        • 2.Sxd5#
      • 1...Sc6+
        • 2.Rxc6#
      • 1...Sc2
        • 2.Sxc2#
        • 2.Rc6#
        • 2.Qxc4#
      • 1...Sd3
        • 2.Rc6#
        • 2.Qxc4#
      • 1...Rxh7+!
    • 1.Rg4?
      • threat
        • 2.Sxc4#
      • 1...Rxf5+
        • 2.Sxf5#
      • 1...Kxd6
        • 2.Sxc4#
      • 1...Sc6
        • 2.Rxc6#
      • 1...Sc2
        • 2.Rc6#
      • 1...Sd3
        • 2.Rc6#
      • 1...Sxd5!
    • 1.Qa3?
      • threat
        • 2.Rc6#
      • 1...Kxd6
        • 2.Sxc4#
      • 1...Ra5
        • 2.Qxb4#
      • 1...Rxb6!
  • Keys
    • 1.f6!
      • threat
        • 2.Sf5#
      • 1...Kxd6
        • 2.Sxc4#
      • 1...Sxd5
        • 2.Sxc4#
      • 1...Sc6
        • 2.Rxc6#
      • 1...Sc2
        • 2.Rc6#
      • 1...Sd3
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(f);S_FLIGHT,XR(I)::S(C),XP(c)
    • R(e);N_GUARD::QAB1(D),XS(b)
    • S(b);N_GUARD::R1(I)
    • S(b);N_GUARD::R1(I),XS(b)
  • Tries
    • Try
      • K(L);S_FLIGHT
      • Threat
        • DUALS(5)
      • Vars
        • S(b);CHECK,XP(E)::B(A)+S(C),XS(b)
        • S(b);CHECK,N_GUARD::R1(I),XS(b)
      • Refutation
        • R(g);CHECK,XP(K)
    • Try
      • R(G);
      • Threat
        • B(A)+S(C),XP(c)
      • Vars
        • R(g);CHECK,XP(F)::B(A)+S(C),XR(g)
        • K(f);S_FLIGHT,XR(I)::S(C),XP(c)
        • S(b);N_GUARD::R1(I),XS(b)
        • S(b);N_GUARD::R1(I)
      • Refutation
        • S(b);XP(E)
    • Try
      • Q(D);P_PINS(b)
      • Threat
        • R1(I)
      • Vars
        • K(f);S_FLIGHT,XR(I)::S(C),XP(c)
        • R(e);N_GUARD::QAB1(D),XS(b)
      • Refutation
        • R(e);XP(H)
  • Actual
    • P(F);
    • Threat
      • B(A)+S(C)
    • Vars
      • K(f);S_FLIGHT,XR(I)::S(C),XP(c)
      • S(b);P_SPINS(b),XP(E)::B(A)+S(C),XP(c)
      • S(b);N_GUARD::R1(I),XS(b)
      • S(b);N_GUARD::R1(I)
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