MESON Chess Problem Database

Problem Display
PID: 136318 (8/2K4B/3PNp1p/1ppkP2R/2p3nR/4p1q1/N5bb/Bn3Q2 w - - 0 1)

Carvalho, G

L'Italia Scacchistica, 2002

8/2K4B/3PNp1p/1ppkP2R/2p3nR/4p1q1/N5bb/Bn3Q2

#2

10 + 12

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Bg8#
  • Tries
    • 1.Sc3+?
      • 1...Kxe6
        • 2.Bg8#
      • 1...Sxc3!
    • 1.Sb4+?
      • 1...Kxe6
        • 2.Bg8#
      • 1...cxb4!
    • 1.Qd3+?
      • 1...Kxe6
        • 2.Bg8#
      • 1...cxd3!
    • 1.Qd1+?
      • 1...Kxe6
        • 2.Bg8#
      • 1...Sd2!
  • Keys
    • 1.Bg8!
      • threat
        • 2.Sg5#
      • 1...Ke4
        • 2.Sxc5#
      • 1...Qxe5
        • 2.Qxg2#
      • 1...Sxe5
        • 2.Sg7#
      • 1...Sc3
        • 2.Sxc3#
      • 1...c3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(j);OGATEB,S_FLIGHT,XS(H)::B(J)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(j);S_FLIGHT,XS(H)::B(J)
      • Refutation
        • S(a);XS(C)
    • Try
      • S(C);CHECK
      • Vars
        • K(j);S_FLIGHT,XS(H)::B(J)
      • Refutation
        • P(i);XS(C)
    • Try
      • Q(B);CHECK
      • Vars
        • K(j);S_FLIGHT,XS(H)::B(J)
      • Refutation
        • P(f);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(j);S_FLIGHT,XS(H)::B(J)
      • Refutation
        • S(a);P_SPINS(a)
  • Actual
    • B(J);
    • Threat
      • B(J)+S(H)
    • Vars
      • K(j);P_SPINS(g),S_FLIGHT::S(H),XP(i)
      • Q(e);N_GUARD,P_PINP(G),P_SPINQ(e),XP(E)::QAB(B),XB(b)
      • S(g);P_SPINS(g),XP(E)::B(J)+S(H)
      • S(a);N_GUARD::S(C),XS(a)
      • P(f);N_GUARD::QAR2(B)
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