MESON Chess Problem Database

Problem Display
PID: 257695 (8/Kp3RB1/br1PB1p1/brk3P1/1p3P2/1p3p2/1P1RNP2/4N3 w - - 0 1)

Labai, Zoltan

1st HM., Suomen Tehtavaniekat, 2009

8/Kp3RB1/br1PB1p1/brk3P1/1p3P2/1p3p2/1P1RNP2/4N3

#2

12 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Rc7#
  • Tries
    • 1.Sc1?
      • 1...Kc6
        • 2.Rc7#
      • 1...Rc6
        • 2.Sxb3#
      • 1...Rxd6!
    • 1.Sg3?
      • 1...Kc6
        • 2.Rc7#
      • 1...Rc6
        • 2.Se4#
      • 1...Rxd6!
    • 1.Bxb3?
      • 1...Kc6
        • 2.Rc7#
      • 1...Rxd6
        • 2.Rc2#
      • 1...Rc6
        • 2.Rd5#
      • 1...fxe2!
    • 1.Rd4?
      • 1...Kc6
        • 2.Rc7#
      • 1...Rxd6
        • 2.Rc4#
      • 1...Rc6
        • 2.Sd3#
      • 1...fxe2!
    • 1.Rd5+?
      • 1...Kc6
        • 2.Sd4#
        • 2.Rc7#
      • 1...Kc4!
  • Keys
    • 1.Sd4!
      • 1...Kxd6
        • 2.Bf8#
      • 1...Rxd6
        • 2.Sd3#
      • 1...Rc6
        • 2.Sxb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(f);P-FLIGHT,S_CUTR(h)::R1(K)
  • Tries
    • Try
      • S(D);
      • Vars
        • K(f);P-FLIGHT,S_CUTR(h)::R1(K)
        • R(h);SBLOCK::S(D),XP(a)
      • Refutation
        • R(h);XP(H)
    • Try
      • S(D);
      • Vars
        • K(f);P-FLIGHT,S_CUTR(h)::R1(K)
        • R(h);SBLOCK::S(D)
      • Refutation
        • R(h);XP(H)
    • Try
      • B(I);XP(a)
      • Vars
        • K(f);P-FLIGHT,S_CUTR(h)::R1(K)
        • R(h);SBLOCK,XP(H)::R(C)
        • R(h);SBLOCK::R1(C)
      • Refutation
        • P(b);XS(D)
    • Try
      • R(C);
      • Vars
        • K(f);P-FLIGHT,S_CUTR(h)::R1(K)
        • R(h);SBLOCK,XP(H)::R1(C)
        • R(h);SBLOCK::S(A)
      • Refutation
        • P(b);XS(D)
    • Try
      • R(C);CHECK
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(f);OGATEB,S_FLIGHT,XP(H)::B(L)
      • R(h);SBLOCK,XP(H)::S(A)
      • R(h);SBLOCK::S(D),XP(a)
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