MESON Chess Problem Database

Problem Display
PID: 87563 (K7/3B4/1p6/3k4/N1N3RB/1r2p3/4P3/8 w - - 0 1)

Kalkavouras, Ioannis

The Problemist, 1992

K7/3B4/1p6/3k4/N1N3RB/1r2p3/4P3/8

#2

7 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3+?
      • 1...Kc5
        • 2.Be7#
      • 1...Rxc3!
    • 1.Saxb6+?
      • 1...Kc5
        • 2.Be7#
      • 1...Rxb6!
    • 1.Be7?
      • 1...Rb1
        • 2.Sc3#
      • 1...Rb2
        • 2.Sc3#
      • 1...Rc3
        • 2.Sxc3#
        • 2.Saxb6#
      • 1...Rd3
        • 2.Saxb6#
      • 1...Rb4
        • 2.Sc3#
      • 1...Rb5
        • 2.Sc3#
      • 1...b5
        • 2.Sab6#
      • 1...Ra3!
  • Keys
    • 1.Bg3!
      • 1...Rb1
        • 2.Sxe3#
      • 1...Rb2
        • 2.Sxe3#
      • 1...Ra3
        • 2.Sxb6#
      • 1...Rc3
        • 2.Scxb6#
      • 1...Rd3
        • 2.Scxb6#
      • 1...Rb4
        • 2.Sxe3#
      • 1...Rb5
        • 2.Sxe3#
      • 1...b5
        • 2.Scb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(c);P-FLIGHT::B(E)
      • Refutation
        • R(a);XS(B)
    • Try
      • S(B);CHECK,XP(d)
      • Vars
        • K(c);P-FLIGHT::B(E)
      • Refutation
        • R(a);XS(B)
    • Try
      • B(E);
      • Vars
        • R(a);N_GUARD::S(B)
        • R(a);N_GUARD::S(B),XP(d)
        • P(d);S_CUTR(a)::S(B)
      • Refutation
        • R(a);P_PINS(B)
  • Actual
    • B(E);
    • Vars
      • R(a);N_GUARD::S(C),XP(b)
      • R(a);N_GUARD,P_PINS(B)::S(C),XP(d)
      • R(a);N_GUARD::S(C),XP(d)
      • P(d);S_CUTR(a)::S(C)
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