MESON Chess Problem Database

Problem Display
PID: 206131 (8/1K6/8/pk1p4/1p1P4/p3PB2/P1R5/1N6 w - - 0 1)

Tompuri, Ismo

Tehtavaniekka, 2019

8/1K6/8/pk1p4/1p1P4/p3PB2/P1R5/1N6

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...a4
      • 2.Rc5#
  • Tries
    • 1.Sc3+?
      • 1...Kc4
        • 2.Be2#
      • 1...bxc3!
    • 1.Bg4?
      • threat
        • 2.Bd7#
      • 1...Ka4
        • 2.Bd7#
      • 1...a4
        • 2.Rc5#
      • 1...b3!
    • 1.Bxd5?
      • threat
        • 2.Bc6#
      • 1...Ka4
        • 2.Bc6#
      • 1...a4
        • 2.Rc5#
      • 1...b3!
    • 1.Bh5?
      • threat
        • 2.Be8#
      • 1...Ka4
        • 2.Be8#
      • 1...a4
        • 2.Rc5#
      • 1...b3!
  • Keys
    • 1.Rc4!
      • 1...Ka4
        • 2.Sc3#
      • 1...Kxc4
        • 2.Be2#
      • 1...dxc4
        • 2.Bc6#
      • 1...b3
        • 2.Sxa3#
      • 1...a4
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::R1(C)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(d);S_FLIGHT::B(E)
      • Refutation
        • P(b);XS(A)
    • Try
      • B(E);
      • Threat
        • B(E)
      • Vars
        • K(d);S_FLIGHT::B(E)
        • P(c);SBLOCK::R1(C)
      • Refutation
        • P(b);
    • Try
      • B(E);XP(e)
      • Threat
        • B(E)
      • Vars
        • K(d);S_FLIGHT::B(E)
        • P(c);SBLOCK::R1(C)
      • Refutation
        • P(b);
    • Try
      • B(E);
      • Threat
        • B(E)
      • Vars
        • K(d);S_FLIGHT::B(E)
        • P(c);SBLOCK::R1(C)
      • Refutation
        • P(b);
  • Actual
    • R(C);
    • Vars
      • K(d);P_SPINP(b),S_FLIGHT::S(A)
      • K(d);OGATEB,S_FLIGHT,XR(C)::B(E)
      • P(e);OGATE,SBLOCK,XR(C)::B(E)
      • P(b);N_GUARD::S(A),XP(a)
      • P(c);SBLOCK::R1(C)
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