MESON Chess Problem Database

Problem Display
PID: 63292 (3q2B1/3npp2/4N1P1/1PP4R/3Pk1p1/1KRN2r1/1pPPP3/1r1n4 w - - 0 1)

Farnes, K

Chess, 1945

3q2B1/3npp2/4N1P1/1PP4R/3Pk1p1/1KRN2r1/1pPPP3/1r1n4

#2

13 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd3
      • 2.cxd3#
    • 1...Sf2
      • 2.Sxf2#
    • 1...Sxc3
      • 2.Sf2#
    • 1...Se3
      • 2.Sf2#
    • 1...Sxc5+
      • 2.Sdxc5#
    • 1...Se5
      • 2.Rxe5#
    • 1...Sb6
      • 2.Re5#
    • 1...Sf6
      • 2.Re5#
    • 1...Sb8
      • 2.Re5#
    • 1...Sf8
      • 2.Re5#
  • Tries
    • 1.d5?
      • threat
        • 2.Rc4#
      • 1...Sxc5+
        • 2.Sdxc5#
      • 1...Rxd3
        • 2.cxd3#
      • 1...Sxc3
        • 2.Sf2#
      • 1...Se5
        • 2.Rxe5#
      • 1...Se3
        • 2.Sf2#
      • 1...Sb6
        • 2.Re5#
      • 1...f5!
  • Keys
    • 1.Rc4!
      • threat
        • 2.d5#
      • 1...Rxd3+
        • 2.cxd3#
      • 1...Sxc5+
        • 2.Sxc5#
      • 1...Se5
        • 2.Rxe5#
      • 1...f5
        • 2.Sg5#
      • 1...Se3
        • 2.Sf2#
      • 1...Sb6
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(d);OGATE,P_PINR(E),XS(F)::P(A),XR(d)
    • S(b);N_GUARD::S(F),XS(b)
    • S(b);N_GUARD,XR(E)::S(F)
    • S(b);N_GUARD::S(F)
    • S(g);CHECK,XP(I)::S(F),XS(g)
    • S(g);N_GUARD::R1(J),XS(g)
    • S(g);N_GUARD::R1(J)
  • Tries
    • Try
      • P(G);
      • Threat
        • R(E)
      • Vars
        • S(g);CHECK,XP(I)::S(F),XS(g)
        • R(d);OGATE,P_PINR(E),XS(F)::P(A),XR(d)
        • S(b);N_GUARD,XR(E)::S(F)
        • S(g);N_GUARD::R1(J),XS(g)
        • S(b);N_GUARD::S(F)
        • S(g);N_GUARD::R1(J)
      • Refutation
        • P(i);
  • Actual
    • R(E);P_SPINS(F)
    • Threat
      • R(E)+P(G)
    • Vars
      • R(d);CHECK,OGATE,XS(F)::P(A),XR(d)
      • S(g);CHECK,XP(I)::S(K),XS(g)
      • S(g);N_GUARD::R1(J),XS(g)
      • P(i);SBLOCK::S(K)
      • S(b);N_PINS(F)::S(F)
      • S(g);N_GUARD::R1(J)
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Developed and maintained by Brian Stephenson.
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