MESON Chess Problem Database

Problem Display
PID: 109248 (8/4p3/2b3Rb/r4k1P/2NR1p2/1pp4N/1qr1QK2/1B6 w - - 0 1)

Robert, Philippe

di Scala MT, 1998

8/4p3/2b3Rb/r4k1P/2NR1p2/1pp4N/1qr1QK2/1B6

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bg7
      • 2.Rxf4#
    • 1...Bf8
      • 2.Rxf4#
    • 1...e5
      • 2.Sd6#
    • 1...e6
      • 2.Sd6#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Qe6#
      • 1...Be4
        • 2.Qxe4#
      • 1...Re5
        • 2.Qg4#
      • 1...Bd7
        • 2.Qe4#
      • 1...e5
        • 2.Qg4#
      • 1...e6
        • 2.Qxe6#
      • 1...Bd5!
    • 1.Bxc2+?
      • 1...Be4
        • 2.Bxe4#
        • 2.Qg4#
        • 2.Qxe4#
      • 1...bxc2
        • 2.Qg4#
        • 2.Qe6#
      • 1...Qxc2!
    • 1.Rf6+?
      • 1...exf6
        • 2.Sd6#
      • 1...Kxf6!
  • Keys
    • 1.Rd2!
      • threat
        • 2.Qe6#
      • 1...Re5
        • 2.Qxe5#
      • 1...Be4
        • 2.Qg4#
      • 1...Bd5
        • 2.Qe5#
      • 1...Bd7
        • 2.Qd3#
      • 1...e5
        • 2.Sd6#
      • 1...e6
        • 2.Sd6#
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(i);N_GUARD::R1(F),XP(e)
    • P(j);N_GUARD::S(E)
  • Tries
    • Try
      • S(E);N_SPINQ(B)
      • Threat
        • QAB1(B)
      • Vars
        • B(h);N_GUARD,N_SPINR(b)::QAB1(B),XB(h)
        • R(f);SBLOCK::QAB1(B)
        • B(h);N_GUARD::QAB1(B)
        • P(j);SBLOCK::QAB1(B)
        • P(j);::QAB1(B),XP(j)
      • Refutation
        • B(h);
    • Try
      • B(A);CHECK,N_SPINQ(B),XR(b)
      • Refutation
        • Q(a);P_PINQ(B),XB(A)
    • Try
      • R(H);CHECK
      • Vars
        • P(j);SBLOCK,XR(H)::S(E)
      • Refutation
        • K(g);N_SPINR(b),P-FLIGHT,XR(H)
  • Actual
    • R(F);N_SPINQ(B)
    • Threat
      • QAB1(B)
    • Vars
      • R(f);N_GUARD::QAR1(B),XR(f)
      • B(h);N_SPINR(b),SBLOCK::QAB1(B)
      • B(h);S_CUTR(f)::QAR1(B)
      • B(h);N_GUARD::QAB(B)
      • P(j);N_GUARD::S(E)
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