MESON Chess Problem Database

Problem Display
PID: 16639 (B6K/1R6/3PpQ2/2p2N2/2N1kp1p/2n3p1/3R4/br4nr w - - 0 1)

Mansfield, Comins

Blighty, 1942

B6K/1R6/3PpQ2/2p2N2/2N1kp1p/2n3p1/3R4/br4nr

#2

8 + 11

3550 Complete Mansfield/II 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Rxb1#
      • 2.Rbb2#
      • 2.Rb3#
      • 2.Rb4#
      • 2.Rb5#
      • 2.Rb6#
    • 1...Sa2
      • 2.Rxb1#
      • 2.Rbb2#
      • 2.Rb3#
      • 2.Rb4#
      • 2.Rb5#
      • 2.Rb6#
    • 1...Se2
      • 2.Rxb1#
      • 2.Rbb2#
      • 2.Rb3#
      • 2.Rb4#
      • 2.Rb5#
      • 2.Rb6#
    • 1...Sa4
      • 2.Rxb1#
      • 2.Rbb2#
      • 2.Rb3#
      • 2.Rb4#
      • 2.Rb5#
      • 2.Rb6#
    • 1...Sb5
      • 2.Rxb5#
      • 2.Rb6#
      • 2.Ra7#
      • 2.Rc7#
      • 2.Rd7#
      • 2.Re7#
      • 2.Rf7#
      • 2.Rg7#
      • 2.Rh7#
      • 2.Rb8#
    • 1...f3
      • 2.Qe5#
    • 1...exf5
      • 2.Re7#
  • Tries
    • 1.Re7+?
      • 1...Sd5
        • 2.Bxd5#
      • 1...Rb7!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Sxh4#
      • 1...Sd1+
        • 2.Rbb2#
      • 1...Sa2+
        • 2.Rbb2#
      • 1...Sce2+
        • 2.Rbb2#
      • 1...Sa4+
        • 2.Rbb2#
      • 1...Sb5+
        • 2.Rg7#
      • 1...Sd5+
        • 2.Sd4#
      • 1...Kf3
        • 2.Rb3#
      • 1...exf5
        • 2.Re7#
      • 1...f3
        • 2.Qg4#
      • 1...h3
        • 2.Sh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • P(h);SBLOCK::QAR1(E)
    • P(k);XS(C)::B(G)+R(F),DCHECK
  • Tries
    • Try
      • R(F);CHECK,P_PINP(k)
      • Vars
        • S(e);N_GUARD,P_PINQ(E),P_SPINS(e)::B(G),XS(e)
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • Q(E);
    • Threat
      • QAB(E)+S(C),XP(i)
    • Vars
      • S(e);CHECK,N_GUARD::B(G)+R(F)
      • S(e);CHECK,N_GUARD,S_CUTR(b)::B(G)+R(F)
      • S(e);CHECK,SBLOCK::QAB(E)+S(C)
      • K(g);S_FLIGHT::B(G)+R(F)
      • P(k);P_SPINP(k),XS(C)::B(G)+R(F),DCHECK
      • P(h);OGATEB::QAR2(E)
      • P(i);::QAB(E)+S(C)
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