MESON Chess Problem Database

Problem Display
PID: 57938 (8/B6B/8/K1R1N3/2NkrP2/6P1/1nrpp3/2R5 w - - 0 1)

Korsgaard, Sam

The Chess Review, 1936

8/B6B/8/K1R1N3/2NkrP2/6P1/1nrpp3/2R5

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Rb5#
  • Tries
    • 1.Rd5+?
      • 1...Kxd5
        • 2.Bg8#
      • 1...Kc3!
    • 1.Rc6+?
      • 1...Kd5
        • 2.Bg8#
        • 2.Rd6#
      • 1...Kc3!
    • 1.Rc7+?
      • 1...Kd5
        • 2.Bg8#
      • 1...Kc3!
    • 1.Rc8+?
      • 1...Kd5
        • 2.Bg8#
      • 1...Kc3!
  • Keys
    • 1.Se3!
      • threat
        • 2.Sxc2#
        • 2.Sf5#
        • 2.R5xc2#
        • 2.Rc4#
      • 1...Rxc5+
        • 2.Bxc5#
      • 1...Sc4+
        • 2.Rxc4#
      • 1...Kxe3
        • 2.Rc3#
      • 1...Rxc1
        • 2.Sf5#
        • 2.Rxc1#
        • 2.Rc2#
        • 2.Rc4#
      • 1...Rxe3
        • 2.Sc6#
      • 1...Rxf4
        • 2.Sxc2#
      • 1...Rxe5
        • 2.Sxc2#
      • 1...dxc1Q
        • 2.Sf5#
        • 2.Rxc2#
        • 2.Rc4#
      • 1...dxc1R
        • 2.Sf5#
        • 2.Rxc2#
        • 2.Rc4#
      • 1...d1Q
        • 2.Sf5#
        • 2.R5xc2#
        • 2.Rc4#
      • 1...d1B
        • 2.Sf5#
        • 2.R5xc2#
        • 2.Rc4#
      • 1...e1S
        • 2.Sf5#
        • 2.R5xc2#
        • 2.Rc4#
      • 1...Rc3
        • 2.Sf5#
        • 2.R5xc3#
        • 2.Rc4#
        • 2.Rd5#
      • 1...Rc4
        • 2.Sf5#
        • 2.R5xc4#
        • 2.Rd5#
      • 1...Sd3
        • 2.Sxc2#
        • 2.Sf5#
        • 2.Rc4#
      • 1...Sa4
        • 2.Sxc2#
        • 2.Sf5#
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(b);::B(H)+R(F)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(e);P-FLIGHT,XR(F)::B(I)
      • Refutation
        • K(e);P_SPINR(b),S_FLIGHT
    • Try
      • R(F);CHECK
      • Refutation
        • K(e);P_SPINR(b),S_FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • K(e);P-FLIGHT::B(I)
      • Refutation
        • K(e);P_SPINR(b),S_FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • K(e);P-FLIGHT::B(I)
      • Refutation
        • K(e);P_SPINR(b),S_FLIGHT
  • Actual
    • S(C);
    • Threat
      • DUALS(4)
    • Vars
      • R(b);CHECK,OGATE,P_SPINR(b),XR(F)::B(H),XR(b)
      • S(a);CHECK::B(H)+R(F),DCHECK,XS(a)
      • K(e);S_FLIGHT,XS(C)::B(H)+R(F),DCHECK
      • R(f);SBLOCK,XS(C)::S(G)
      • R(f);XP(D)::S(C),XR(b)
      • R(f);P_PINR(F),XS(G)::S(C),XR(b)
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