MESON Chess Problem Database

Problem Display
PID: 58196 (8/1K6/2R1R3/5p2/1Npk4/pppp3b/q6r/3Q1B2 w - - 0 1)

Petite, Efren

Scacco!, 1997

8/1K6/2R1R3/5p2/1Npk4/pppp3b/q6r/3Q1B2

#2

6 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Rxc4#
  • Tries
    • 1.Sxd3?
      • threat
        • 2.Rcd6#
      • 1...Kd5
        • 2.Sb4#
        • 2.Sf4#
        • 2.Rcd6#
      • 1...cxd3
        • 2.Qxd3#
      • 1...Qg2
        • 2.Sf2#
      • 1...Bg2
        • 2.Sb2#
      • 1...c2!
    • 1.Qf3?
      • threat
        • 2.Qd5#
        • 2.Qe3#
        • 2.Qf4#
      • 1...Qg2
        • 2.Qe3#
      • 1...Qd2
        • 2.Qd5#
      • 1...Qe2
        • 2.Qd5#
      • 1...Qf2
        • 2.Qd5#
      • 1...Re2
        • 2.Qd5#
      • 1...Rf2
        • 2.Qd5#
        • 2.Qe3#
      • 1...Bg2
        • 2.Qe3#
      • 1...f4
        • 2.Re4#
        • 2.Qe4#
        • 2.Qd5#
        • 2.Qxf4#
      • 1...c2!
  • Keys
    • 1.Bxd3!
      • threat
        • 2.Rxc4#
      • 1...cxd3
        • 2.Qxd3#
      • 1...Qg2
        • 2.Be2#
      • 1...Bg2
        • 2.Bc2#
      • 1...b2
        • 2.Be2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(f);::R1(D),XP(h)
  • Tries
    • Try
      • S(C);XP(f)
      • Threat
        • R(D)
      • Vars
        • P(h);OGATE,P_SPINP(h),XS(C)::QAR1(A),XP(h)
        • Q(a);N_GUARD,P_PINR(D)::QAR(A)+S(C)
        • B(g);P_PINR(D),S_CUTR(b)::QAR(A)+S(C)
      • Refutation
        • P(e);
    • Try
      • Q(A);N_PINP(f)
      • Threat
        • DUALS(3)
      • Vars
        • Q(a);::QAB1(A)
        • Q(a);::QAR1(A)
        • R(b);::QAR1(A)
        • B(g);::QAB1(A)
      • Refutation
        • P(e);
  • Actual
    • B(B);XP(f)
    • Threat
      • R1(D),XP(h)
    • Vars
      • P(h);OGATE,P_SPINP(h),XB(B)::QAR1(A),XP(h)
      • Q(a);N_GUARD,P_PINR(D)::QAR(A)+B(B)
      • B(g);P_PINR(D),S_CUTR(b)::QAR(A)+B(B)
      • P(d);S_CUTQ(a)::QAR(A)+B(B)
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