MESON Chess Problem Database

Problem Display
PID: 133120 (NbBr4/nR1p4/r1k3qR/5p1p/p7/B1PQ1pK1/1p6/8 w - - 0 1)

Boyer, Jean-Pierre

1st HM., Ceriani MT, 1971

NbBr4/nR1p4/r1k3qR/5p1p/p7/B1PQ1pK1/1p6/8

#2

8 + 12

SOLUTION

  • SOUND
  • Tries
    • 1.Kf2?
      • threat
        • 2.Qc4#
      • 1...Rxc8
        • 2.Qxd7#
      • 1...Sxc8
        • 2.Qb5#
      • 1...Ra5
        • 2.Rb6#
      • 1...Bd6
        • 2.Qxf3#
      • 1...d5
        • 2.Qxa6#
      • 1...Bg3+!
    • 1.Kxf3?
      • threat
        • 2.Qc4#
      • 1...Rxc8
        • 2.Qxd7#
      • 1...Sxc8
        • 2.Qb5#
      • 1...Ra5
        • 2.Rb6#
      • 1...d5
        • 2.Qxa6#
      • 1...Bd6!
  • Keys
    • 1.Kh3!
      • threat
        • 2.Qc4#
      • 1...Rxc8
        • 2.Qxd7#
      • 1...Sxc8
        • 2.Qb5#
      • 1...Ra5
        • 2.Rb6#
      • 1...Bd6
        • 2.Qxf3#
      • 1...d5
        • 2.Qxa6#

FEATURES

  • Static
    • TYPE = WHITE_IN_CHECK
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • QAR2(C)
      • Vars
        • R(l);N_GUARD,XB(H)::QAB1(C),XP(j)
        • S(i);N_GUARD,XB(H)::QAB1(C)
        • R(f);N_GUARD::R1(F)
        • B(k);N_SPINQ(h),S_CUTP(j)::QAB(C),XP(b)
        • P(j);SBLOCK::QAR2(C),XR(f)
      • Refutation
        • B(k);CHECK
    • Try
      • K(D);P-FLIGHT,XP(b)
      • Threat
        • QAR2(C)
      • Vars
        • R(l);N_GUARD,XB(H)::QAB1(C),XP(j)
        • S(i);N_GUARD,XB(H)::QAB1(C)
        • R(f);N_GUARD::R1(F)
        • P(j);SBLOCK::QAR2(C),XR(f)
      • Refutation
        • B(k);N_SPINQ(h)
  • Actual
    • K(D);P-FLIGHT
    • Threat
      • QAR2(C)
    • Vars
      • R(l);N_GUARD,XB(H)::QAB1(C),XP(j)
      • S(i);N_GUARD,XB(H)::QAB1(C)
      • R(f);N_GUARD::R1(F)
      • B(k);N_SPINQ(h),S_CUTP(j)::QAB(C),XP(b)
      • P(j);SBLOCK::QAR2(C),XR(f)
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