MESON Chess Problem Database

Problem Display
PID: 96655 (8/4p3/2p1K1p1/2Pp1pP1/4k3/4N3/2P3P1/3Q1N2 w - - 0 1)

Ramon, E Pardo

Problemas, 1970

8/4p3/2p1K1p1/2Pp1pP1/4k3/4N3/2P3P1/3Q1N2

#2

8 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Qf3#
    • 1...f4
      • 2.Qd3#
  • Tries
    • 1.Sg4?
      • 1...fxg4
        • 2.Qxg4#
      • 1...d4
        • 2.Qf3#
      • 1...f4
        • 2.Sf2#
        • 2.Qd3#
      • 1...Kf4!
    • 1.Sxd5?
      • threat
        • 2.Sg3#
        • 2.Qd3#
      • 1...f4
        • 2.Sc3#
        • 2.Qd3#
      • 1...cxd5!
    • 1.c3?
      • threat
        • 2.Qd4#
      • 1...d4
        • 2.Qxd4#
      • 1...Kf4!
  • Keys
    • 1.Qe1!
      • 1...Kd4
        • 2.Qb4#
      • 1...Kf4
        • 2.Qh4#
      • 1...d4
        • 2.Sd5#
      • 1...f4
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAB1(A)
    • P(c);SBLOCK::QAB1(A)
  • Tries
    • Try
      • S(E);
      • Vars
        • P(c);OGATE,XS(E)::QAR2(A),XP(c)
        • P(b);SBLOCK::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(E);XP(b)
      • Threat
        • DUALS(2)
      • Refutation
        • P(d);XS(E)
    • Try
      • P(C);
      • Threat
        • QAR1(A)
      • Vars
        • P(b);::QAR1(A),XP(b)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);P-FLIGHT::QAR2(A)
      • P(b);SBLOCK::QAR(A)+S(E)
      • P(c);SBLOCK::QAR(A)+S(E)
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