MESON Chess Problem Database

Problem Display
PID: 186711 (2K4b/2p1B2r/p4p1n/r1R5/8/p5N1/R1B3p1/1Nk2bnQ w - - 0 1)

Matthews, CJ

Chess, 1960

2K4b/2p1B2r/p4p1n/r1R5/8/p5N1/R1B3p1/1Nk2bnQ

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rf7
      • 2.Qxh6#
    • 1...Be2
      • 2.Sxe2#
    • 1...Se2
      • 2.Sxe2#
    • 1...Sf3
      • 2.Se2#
    • 1...Sh3
      • 2.Se2#
  • Tries
    • 1.Rd5?
      • threat
        • 2.Rd1#
      • 1...Rxd5
        • 2.Bxa3#
      • 1...Be2
        • 2.Sxe2#
      • 1...Bd3!
    • 1.Qxg1?
      • threat
        • 2.Se2#
        • 2.Qe3#
      • 1...Sg4
        • 2.Se2#
      • 1...Sf5
        • 2.Se2#
      • 1...Rxe7!
  • Keys
    • 1.Re5!
      • threat
        • 2.Re1#
      • 1...Rxe5
        • 2.Bxa3#
      • 1...Rxe7
        • 2.Qxh6#
      • 1...fxe5
        • 2.Bg5#
      • 1...Rd5
        • 2.Bxa3#
      • 1...Be2
        • 2.Sxe2#
      • 1...Se2
        • 2.Sxe2#
      • 1...Sf3
        • 2.Se2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(k);N_GUARD::QAB(B),XS(i)
    • B(b);N_GUARD,P_SPINS(c)::S(E),XB(b)
    • S(c);N_GUARD,P_SPINB(b)::S(E),XS(c)
    • S(c);N_GUARD,P_SPINB(b)::S(E)
  • Tries
    • Try
      • R(F);
      • Threat
        • R1(F)
      • Vars
        • R(f);N_GUARD,XR(F)::B(G),XP(e)
        • B(b);N_GUARD,P_SPINS(c)::S(E),XB(b)
      • Refutation
        • B(b);P_SPINS(c)
    • Try
      • Q(B);P_PINB(b),XS(c)
      • Threat
        • DUALS(2)
      • Vars
        • S(i);::S(E)
      • Refutation
        • R(k);XB(G)
  • Actual
    • R(F);
    • Threat
      • R(F)
    • Vars
      • R(f);N_GUARD,XR(F)::B(G),XP(e)
      • R(k);N_GUARD,XB(G)::QAB(B),XS(i)
      • P(h);OGATE,XR(F)::B(G)
      • R(f);N_GUARD::B(G),XP(e)
      • B(b);N_GUARD,P_SPINS(c)::S(E),XB(b)
      • S(c);N_GUARD,P_SPINB(b)::S(E),XS(c)
      • S(c);N_GUARD,P_SPINB(b)::S(E)
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Developed and maintained by Brian Stephenson.
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