MESON Chess Problem Database

Problem Display
PID: 242996 (2rR4/8/8/8/1P1N1N2/5P2/B2B1RK1/2rk4 w - - 0 1)

Surkov, Ruslan Albertovich

Zadachi i Etyudi, 2002

2rR4/8/8/8/1P1N1N2/5P2/B2B1RK1/2rk4

#2

9 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Sf5?
      • threat
        • 2.Se3#
      • 1...Kc2
        • 2.Be1#
      • 1...R8c3
        • 2.Bxc3#
      • 1...R1c3!
    • 1.Bxc1?
      • threat
        • 2.Rf1#
      • 1...Kxc1
        • 2.Sb3#
      • 1...Ke1
        • 2.Rf1#
      • 1...Rxc1
        • 2.Sc2#
      • 1...Rc2!
    • 1.Be3?
      • threat
        • 2.Rf1#
      • 1...Ke1
        • 2.Rf1#
      • 1...R8c2
        • 2.Sxc2#
      • 1...R1c2!
  • Keys
    • 1.Sc2!
      • threat
        • 2.Se3#
      • 1...Kxc2
        • 2.Be1#
      • 1...R1xc2
        • 2.Rf1#
      • 1...R8xc2
        • 2.Rf1#
      • 1...Rc3
        • 2.Bxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • K(b);S_FLIGHT::R(C)+B(B)
        • R(c);N_GUARD::R(I)+B(B),XR(c)
      • Refutation
        • R(a);
    • Try
      • B(B);XR(a)
      • Threat
        • R(C)
      • Vars
        • K(b);P-FLIGHT,XB(B)::S(G)
        • K(b);P-FLIGHT::R1(C)
        • R(c);N_GUARD,SBLOCK,XB(B)::R(I)+S(G)
      • Refutation
        • R(c);P_PINR(C)
    • Try
      • B(B);
      • Threat
        • R(C)
      • Vars
        • K(b);P-FLIGHT::R1(C)
        • R(c);N_GUARD,P_PINR(C)::R(I)+S(G),XR(c)
      • Refutation
        • R(a);P_PINR(C)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • K(b);S_FLIGHT,XS(G)::R(C)+B(B)
      • R(a);SBLOCK,XS(G)::R(C)
      • R(c);SBLOCK,XS(G)::R(C)
      • R(c);N_GUARD::R(I)+B(B),XR(c)
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