MESON Chess Problem Database

Problem Display
PID: 214935 (2NR4/3b1p2/B2qkB2/3r1pP1/8/1N6/3R4/3K4 w - - 0 1)

Creus Lladors, Antonio

SEPA, 1942

2NR4/3b1p2/B2qkB2/3r1pP1/8/1N6/3R4/3K4

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ra5
      • 2.Rxd6#
    • 1...Rb5
      • 2.Rxd6#
    • 1...Rc5
      • 2.Rxd6#
    • 1...Re5
      • 2.Rxd6#
  • Tries
    • 1.Sc5+?
      • 1...Rxc5
        • 2.Rxd6#
      • 1...Qxc5!
    • 1.Re8+?
      • 1...Qe7
        • 2.Rxe7#
      • 1...Bxe8!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Sd4#
      • 1...Qf4
        • 2.Sc5#
        • 2.Bxd5#
      • 1...Qc5
        • 2.Sxc5#
      • 1...Qe5
        • 2.Sc5#
      • 1...Qb6
        • 2.Bxd5#
      • 1...Ba4
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(a);::R1(B),XQ(c)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • R(a);XS(C)::R1(B),XQ(c)
      • Refutation
        • Q(c);XS(C)
    • Try
      • R(H);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::R1(H),XQ(c)
      • Refutation
        • B(e);XR(H)
  • Actual
    • B(E);P_PINR(a)
    • Threat
      • S(C)
    • Vars
      • Q(c);N_GUARD::S(C),XQ(c)
      • Q(c);N_GUARD::S(C)
      • Q(c);N_GUARD::B(E),XR(a)
      • B(e);OGATE,P_PINS(C)::R1(H),XQ(c)
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