MESON Chess Problem Database

Problem Display
PID: 227137 (8/6BB/2p5/1Pp2p2/1p2k2p/2p1P1p1/4K3/1N1R3N w - - 0 1)

Willmott, Arthur

Problem Observer, 1997

8/6BB/2p5/1Pp2p2/1p2k2p/2p1P1p1/4K3/1N1R3N

#2

8 + 8

15601 Albrecht-Leiss-Degener Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...g2
      • 2.Sf2#
    • 1...b3
      • 2.Sxc3#
    • 1...h3
      • 2.Sxg3#
    • 1...c4
      • 2.Rd4#
  • Tries
    • 1.Rd3?
      • 1...c2
        • 2.Sd2#
      • 1...g2
        • 2.Sf2#
      • 1...b3
        • 2.Sxc3#
      • 1...h3
        • 2.Sxg3#
      • 1...c4
        • 2.Rd4#
      • 1...cxb5!
    • 1.Rd6?
      • 1...c2
        • 2.Sd2#
      • 1...g2
        • 2.Sf2#
      • 1...b3
        • 2.Sxc3#
      • 1...h3
        • 2.Sxg3#
      • 1...c4
        • 2.Rd4#
      • 1...cxb5!
    • 1.Rd7?
      • 1...c2
        • 2.Sd2#
      • 1...g2
        • 2.Sf2#
      • 1...b3
        • 2.Sxc3#
      • 1...h3
        • 2.Sxg3#
      • 1...c4
        • 2.Rd4#
      • 1...cxb5!
    • 1.Rd8?
      • 1...c2
        • 2.Sd2#
      • 1...g2
        • 2.Sf2#
      • 1...b3
        • 2.Sxc3#
      • 1...h3
        • 2.Sxg3#
      • 1...c4
        • 2.Rd4#
      • 1...cxb5!
    • 1.bxc6?
      • 1...g2
        • 2.Sf2#
      • 1...b3
        • 2.Sxc3#
      • 1...h3
        • 2.Sxg3#
      • 1...c4
        • 2.Rd4#
      • 1...c2!
    • 1.b6?
      • 1...g2
        • 2.Sf2#
      • 1...b3
        • 2.Sxc3#
      • 1...h3
        • 2.Sxg3#
      • 1...c4
        • 2.Rd4#
      • 1...c2!
  • Keys
    • 1.Bg8!
      • 1...cxb5
        • 2.Bd5#
      • 1...f4
        • 2.Bh7#
      • 1...c2
        • 2.Sd2#
      • 1...g2
        • 2.Sf2#
      • 1...b3
        • 2.Sxc3#
      • 1...h3
        • 2.Sxg3#
      • 1...c4
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD::S(C)
    • P(c);N_GUARD::S(A),XP(a)
    • P(e);N_GUARD::S(C),XP(b)
    • P(f);N_GUARD::R1(B)
  • Tries
    • Try
      • R(B);
      • Vars
        • P(a);N_GUARD::S(A)
        • P(b);N_GUARD::S(C)
        • P(c);N_GUARD::S(A),XP(a)
        • P(e);N_GUARD::S(C),XP(b)
        • P(f);N_GUARD::R1(B)
      • Refutation
        • P(h);XP(F)
    • Try
      • R(B);
      • Vars
        • P(a);N_GUARD::S(A)
        • P(b);N_GUARD::S(C)
        • P(c);N_GUARD::S(A),XP(a)
        • P(e);N_GUARD::S(C),XP(b)
        • P(f);N_GUARD::R1(B)
      • Refutation
        • P(h);XP(F)
    • Try
      • R(B);
      • Vars
        • P(a);N_GUARD::S(A)
        • P(b);N_GUARD::S(C)
        • P(c);N_GUARD::S(A),XP(a)
        • P(e);N_GUARD::S(C),XP(b)
        • P(f);N_GUARD::R1(B)
      • Refutation
        • P(h);XP(F)
    • Try
      • R(B);
      • Vars
        • P(a);N_GUARD::S(A)
        • P(b);N_GUARD::S(C)
        • P(c);N_GUARD::S(A),XP(a)
        • P(e);N_GUARD::S(C),XP(b)
        • P(f);N_GUARD::R1(B)
      • Refutation
        • P(h);XP(F)
    • Try
      • P(F);XP(h)
      • Vars
        • P(b);N_GUARD::S(C)
        • P(c);N_GUARD::S(A),XP(a)
        • P(e);N_GUARD::S(C),XP(b)
        • P(f);N_GUARD::R1(B)
      • Refutation
        • P(a);
    • Try
      • P(F);
      • Vars
        • P(b);N_GUARD::S(C)
        • P(c);N_GUARD::S(A),XP(a)
        • P(e);N_GUARD::S(C),XP(b)
        • P(f);N_GUARD::R1(B)
      • Refutation
        • P(a);
  • Actual
    • B(H);N_PINP(g)
    • Vars
      • P(h);N_GUARD,XP(F)::B(H)
      • P(g);OGATEB::B(H)
      • P(a);N_GUARD::S(A)
      • P(b);N_GUARD::S(C)
      • P(c);N_GUARD::S(A),XP(a)
      • P(e);N_GUARD::S(C),XP(b)
      • P(f);N_GUARD::R1(B)
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