MESON Chess Problem Database

Problem Display
PID: 202253 (8/5p2/1N3K2/2N5/8/4k3/1P4Q1/8 w - - 0 1)

Renaud, Georges

Chess Amateur (The), 1923

8/5p2/1N3K2/2N5/8/4k3/1P4Q1/8

#2

5 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qg1#
      • 2.Qf2#
    • 1...Kf4
      • 2.Sd5#
  • Tries
    • 1.Kf5?
      • 1...Kd4
        • 2.Qg1#
        • 2.Qf2#
      • 1...f6!
    • 1.Sb3?
      • 1...Kf4
        • 2.Sd5#
      • 1...Kd3!
    • 1.Sba4?
      • 1...Kd4
        • 2.Qe4#
      • 1...Kf4!
    • 1.Sc4+?
      • 1...Kf4
        • 2.Sd3#
      • 1...Kd4!
    • 1.Sbd7?
      • 1...Kd4
        • 2.Qe4#
      • 1...Kf4!
    • 1.Qf1?
      • 1...Kd4
        • 2.Qg1#
        • 2.Qf2#
      • 1...Kd2!
    • 1.Qh2?
      • 1...Kd4
        • 2.Qg1#
        • 2.Qe5#
        • 2.Qf2#
      • 1...Kf3!
    • 1.b3?
      • 1...Kf4
        • 2.Sd5#
      • 1...Kd4!
  • Keys
    • 1.b4!
      • 1...Kd4
        • 2.Qd2#
      • 1...Kf4
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(D)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Refutation
        • P(b);
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::S(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(a);S_FLIGHT::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(A);
      • Vars
        • K(a);S_FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • P(A);
    • Vars
      • K(a);S_FLIGHT::QAR2(B)
      • K(a);S_FLIGHT::S(D)
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