MESON Chess Problem Database

Problem Display
PID: 61152 (8/8/2p5/1pp2N2/6Q1/2k5/2P5/2K5 w - - 0 1)

Mlynka, Karol

Comm., Ling-50 Ty., 2005

8/8/2p5/1pp2N2/6Q1/2k5/2P5/2K5

#2

4 + 4

136 Problem Observer 2005

SOLUTION

  • SOUND
  • Tries
    • 1.Sd6?
      • 1...b4
        • 2.Qc4#
        • 2.Qg7#
      • 1...c4!
    • 1.Qe2?
      • 1...b4
        • 2.Qd3#
      • 1...c4
        • 2.Qe1#
        • 2.Qd2#
      • 1...Kb4!
    • 1.Qf3+?
      • 1...Kc4
        • 2.Qb3#
      • 1...Kb4!
    • 1.Qh3+?
      • 1...Kc4
        • 2.Qb3#
      • 1...Kb4!
    • 1.Qg3+?
      • 1...Kc4
        • 2.Qb3#
      • 1...Kb4!
    • 1.Qa4?
      • threat
        • 2.Qb3#
      • 1...c4
        • 2.Qa3#
      • 1...bxa4!
    • 1.Qf4?
      • 1...c4
        • 2.Qd2#
      • 1...b4!
    • 1.Qh4?
      • 1...c4
        • 2.Qe1#
      • 1...b4!
  • Keys
    • 1.Qe4!
      • 1...c4
        • 2.Qe1#
      • 1...b4
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Refutation
        • P(c);
    • Try
      • Q(C);
      • Vars
        • P(b);SBLOCK::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • P(c);SBLOCK::QAR2(C)
      • Refutation
        • P(b);XQ(C)
    • Try
      • Q(C);
      • Vars
        • P(c);SBLOCK::QAB1(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);
      • Vars
        • P(c);SBLOCK::QAB(C)
      • Refutation
        • P(b);
  • Actual
    • Q(C);
    • Vars
      • P(c);SBLOCK::QAB(C)
      • P(b);SBLOCK::QAR1(C)
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