MESON Chess Problem Database

Problem Display
PID: 48896 (8/8/5p1B/5B2/Q7/2pp4/n1P1P1N1/KRbk4 w - - 0 1)

Mendes de Moraes Filho, Feliciano

Het Schaakleven, 1932

8/8/5p1B/5B2/Q7/2pp4/n1P1P1N1/KRbk4

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...dxc2
      • 2.Qxc2#
    • 1...dxe2
      • 2.Qd7#
      • 2.Qd4#
  • Tries
    • 1.Bxd3?
      • 1...Sb4
        • 2.Rxc1#
      • 1...f5!
    • 1.Qe4?
      • threat
        • 2.Qxd3#
      • 1...Kxc2
        • 2.Qxd3#
        • 2.Qa4#
      • 1...dxc2
        • 2.Qxc2#
        • 2.Qd3#
      • 1...dxe2
        • 2.Qd3#
        • 2.Qd5#
        • 2.Qd4#
      • 1...Sb4
        • 2.Rxc1#
      • 1...d2!
    • 1.Qf4?
      • 1...Kxc2
        • 2.Qa4#
      • 1...Kxe2
        • 2.Bg4#
      • 1...dxc2
        • 2.Qf1#
      • 1...dxe2
        • 2.Qd6#
        • 2.Qd4#
      • 1...d2
        • 2.Qf1#
      • 1...Sb4!
  • Keys
    • 1.Qg4!
      • 1...Kxc2
        • 2.Qa4#
      • 1...dxc2
        • 2.e4#
      • 1...dxe2
        • 2.Qd4#
      • 1...Sb4
        • 2.Rxc1#
      • 1...d2
        • 2.e3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(e);OGATE,P_SPINP(e),XP(C)::QAB1(F),XP(e)
  • Tries
    • Try
      • B(G);XP(e)
      • Vars
        • S(c);N_GUARD::R1(B),XB(a)
      • Refutation
        • P(f);
    • Try
      • Q(F);
      • Threat
        • QAR2(F),XP(e)
      • Vars
        • S(c);N_GUARD::R1(B),XB(a)
      • Refutation
        • P(e);
    • Try
      • Q(F);
      • Vars
        • K(b);N_SPINB(a),OGATEB,P_SPINP(e),S_FLIGHT,XP(C)::QAB(F)
        • K(b);N_SPINB(a),OGATEB,S_FLIGHT,XP(D)::B(G)
        • P(e);XP(C)::QAR2(F)
        • P(e);::QAR2(F)
      • Refutation
        • S(c);
  • Actual
    • Q(F);
    • Vars
      • K(b);N_SPINB(a),OGATEB,P_SPINP(e),S_FLIGHT,XP(C)::QAB(F)
      • P(e);SBLOCK,XP(C)::QAB(F)+P(D)
      • P(e);OGATEB,P_SPINP(e),SBLOCK,XP(D)::QAR(F)
      • S(c);N_GUARD::R1(B),XB(a)
      • P(e);SBLOCK::QAB(F)+P(D)
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