MESON Chess Problem Database

Problem Display
PID: 135321 (8/8/p2R4/p7/KnkP4/8/p2RP3/B1nB4 w - - 0 1)

Matthews, Robin CO

Correspondence Chess, 1962

8/8/p2R4/p7/KnkP4/8/p2RP3/B1nB4

#2

7 + 6

14609 Mostly Three=Movers 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe2
      • 2.Bb3#
    • 1...Sb3
      • 2.Bxb3#
    • 1...Scd3
      • 2.Bb3#
    • 1...Sc2
      • 2.Rxc2#
    • 1...Sbd3
      • 2.Rc2#
    • 1...Sd5
      • 2.Rc6#
    • 1...Sc6
      • 2.Rc2#
  • Tries
    • 1.Rd7?
      • 1...Sxe2
        • 2.Bb3#
      • 1...Sc2
        • 2.Rxc2#
      • 1...Sb3
        • 2.Bxb3#
      • 1...Scd3
        • 2.Bb3#
      • 1...Sbd3
        • 2.Rc2#
      • 1...Sc6
        • 2.Rc2#
      • 1...Sd5!
    • 1.Rd8?
      • 1...Sxe2
        • 2.Bb3#
      • 1...Sc2
        • 2.Rxc2#
      • 1...Sb3
        • 2.Bxb3#
      • 1...Scd3
        • 2.Bb3#
      • 1...Sbd3
        • 2.Rc2#
      • 1...Sc6
        • 2.Rc2#
      • 1...Sd5!
  • Keys
    • 1.e4!
      • 1...Sc2
        • 2.Rc6#
      • 1...Se2
        • 2.Bb3#
      • 1...Sb3
        • 2.Bxb3#
      • 1...Scd3
        • 2.Bb3#
      • 1...Sbd3
        • 2.Rc2#
      • 1...Sd5
        • 2.Rc6#
      • 1...Sc6
        • 2.Rxc6#

Published under the pseudonym 'C. Oliver'.

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD,XP(D)::B(B)
    • S(a);N_GUARD::B(B),XS(a)
    • S(a);N_GUARD::B(B)
    • S(c);N_GUARD::R(C),XS(c)
    • S(c);N_GUARD::R(C)
    • S(c);N_GUARD,SBLOCK::R(G)
  • Tries
    • Try
      • R(G);
      • Vars
        • S(a);N_GUARD,XP(D)::B(B)
        • S(c);N_GUARD::R(C),XS(c)
        • S(a);N_GUARD::B(B),XS(a)
        • S(a);N_GUARD::B(B)
        • S(c);N_GUARD::R(C)
      • Refutation
        • S(c);
    • Try
      • R(G);
      • Vars
        • S(a);N_GUARD,XP(D)::B(B)
        • S(c);N_GUARD::R(C),XS(c)
        • S(a);N_GUARD::B(B),XS(a)
        • S(a);N_GUARD::B(B)
        • S(c);N_GUARD::R(C)
      • Refutation
        • S(c);
  • Actual
    • P(D);
    • Vars
      • S(c);N_GUARD::R(G)
      • S(a);N_GUARD::B(B)
      • S(a);N_GUARD::B(B),XS(a)
      • S(c);N_GUARD,SBLOCK::R(C)
      • S(c);N_GUARD::R(G),XS(c)
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