MESON Chess Problem Database

Problem Display
PID: 230137 (8/3p3K/8/4kB1N/1P6/3Q3P/8/8 w - - 0 1)

Romanov, V

Zadachi i Etyudi, 2000

8/3p3K/8/4kB1N/1P6/3Q3P/8/8

#2

6 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...d6
      • 2.Qe4#
  • Tries
    • 1.Kg6?
      • 1...d6
        • 2.Qe4#
      • 1...d5!
    • 1.Kh6?
      • 1...d6
        • 2.Qe4#
      • 1...d5!
    • 1.Kg7?
      • 1...d6
        • 2.Qe4#
      • 1...d5!
    • 1.Kg8?
      • 1...d6
        • 2.Qe4#
      • 1...d5!
    • 1.Kh8?
      • 1...d6
        • 2.Qe4#
      • 1...d5!
    • 1.Be4?
      • threat
        • 2.Qd5#
      • 1...d5
        • 2.Qxd5#
      • 1...Ke6!
    • 1.Qc2?
      • 1...Kd4
        • 2.Qc5#
      • 1...Kd5
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...d6
        • 2.Qe4#
      • 1...d5!
    • 1.Qb5+?
      • 1...Kd4
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...d5!
    • 1.Qd2?
      • 1...Kxf5
        • 2.Qd5#
      • 1...d5
        • 2.Qf4#
      • 1...d6!
    • 1.Qc3+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kxf5!
    • 1.Qe3+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kxf5!
    • 1.Qd4+?
      • 1...Kxf5
        • 2.Qd5#
      • 1...Kxd4!
    • 1.Qd6+?
      • 1...Kxf5
        • 2.Qd5#
      • 1...Kxd6!
    • 1.h4?
      • 1...d6
        • 2.Qe4#
      • 1...d5!
    • 1.b5?
      • 1...d6
        • 2.Qe4#
      • 1...d5!
  • Keys
    • 1.Qc4!
      • 1...Kxf5
        • 2.Qd5#
      • 1...Kd6
        • 2.Qc5#
      • 1...d5
        • 2.Qf4#
      • 1...d6
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAR1(A)
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • K(F);P-FLIGHT
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • K(F);P-FLIGHT
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • K(F);S_FLIGHT
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • K(F);P-FLIGHT
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • B(D);
      • Threat
        • QAR1(A)
      • Vars
        • P(b);::QAR1(A),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • K(a);P-FLIGHT::QAR1(A)
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT,XB(D)::QAR2(A)
        • P(b);SBLOCK::QAB1(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT,XB(D)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT,XB(D)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(D)::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(D)::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
    • Try
      • P(B);
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • P(C);
      • Vars
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(b);
  • Actual
    • Q(A);
    • Vars
      • K(a);P-FLIGHT,XB(D)::QAR2(A)
      • K(a);S_FLIGHT::QAB1(A)
      • P(b);SBLOCK::QAB1(A)
      • P(b);SBLOCK::QAR1(A)
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