MESON Chess Problem Database

Problem Display
PID: 150153 (1R6/7K/7B/8/1N6/p1RQ4/rkpPPN2/1b6 w - - 0 1)

Subotic, Miroslav

The Problemist, 2013

1R6/7K/7B/8/1N6/p1RQ4/rkpPPN2/1b6

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...c1Q
      • 2.Sc2#
    • 1...c1B
      • 2.Sc2#
    • 1...c1R
      • 2.Sc2#
  • Tries
    • 1.Sxa2+?
      • 1...Kxa2
        • 2.Rxa3#
      • 1...Ka1!
    • 1.Bg7?
      • threat
        • 2.Rxc2#
      • 1...Ka1
        • 2.Rxa3#
      • 1...c1Q
        • 2.Sc2#
        • 2.Rc2#
        • 2.Rb3#
      • 1...c1S
        • 2.Rc2#
        • 2.Rxa3#
        • 2.Rb3#
        • 2.Rc4#
        • 2.Rc5#
        • 2.Rc6#
        • 2.Rc7#
        • 2.Rcc8#
      • 1...c1B
        • 2.Sc2#
        • 2.Rc2#
        • 2.Rxa3#
        • 2.Rb3#
        • 2.Rc4#
        • 2.Rc5#
        • 2.Rc6#
        • 2.Rc7#
        • 2.Rcc8#
      • 1...c1R
        • 2.Sc2#
        • 2.Rc2#
        • 2.Rb3#
      • 1...Kc1!
  • Keys
    • 1.Qd4!
      • 1...c1Q+
        • 2.Sc2#
      • 1...c1S+
        • 2.Rd3#
      • 1...c1B+
        • 2.Sc2#
        • 2.Rd3#
      • 1...c1R+
        • 2.Sc2#
      • 1...Ka1
        • 2.Rxa3#
      • 1...Kc1
        • 2.Sbd3#
      • 1...Ra1
        • 2.Sfd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(d);P_PINQ(E),SBLOCK::R(I)+S(F)
  • Tries
    • Try
      • S(F);CHECK,XR(b)
      • Vars
        • K(c);P-FLIGHT,XS(F)::R1(D),XP(e)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(G);
      • Threat
        • B(G)+R(D),DCHECK,XP(d)
      • Vars
        • K(c);S_FLIGHT::B(G)+R(D),XP(e)
      • Refutation
        • K(c);P_SPINP(d),S_FLIGHT
  • Actual
    • Q(E);
    • Vars
      • P(d);CHECK,SBLOCK::R(I)+S(F)
      • P(d);CHECK,SBLOCK::QAB(E)+R(D)
      • K(c);S_FLIGHT::QAB(E)+R(D),XP(e)
      • K(c);P_SPINP(d),S_FLIGHT::S(F)
      • R(b);SBLOCK::S(C)
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