MESON Chess Problem Database

Problem Display
PID: 166637 (b7/Q7/2k5/8/3PN3/2K2B2/8/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Lincoln, Robert A

Comm., StrateGems, 2016

b7/Q7/2k5/8/3PN3/2K2B2/8/8

#2

5 + 2

145 StrateGems 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kb5
      • 2.Sd6#
    • 1...Kd5
      • 2.Qd7#
  • Tries
    • 1.Kb3?
      • 1...Kb5
        • 2.Sc3#
        • 2.Sd6#
      • 1...Kd5
        • 2.Qd7#
      • 1...Bb7!
    • 1.Kb4?
      • 1...Kd5
        • 2.Qd7#
      • 1...Bb7!
    • 1.Sf6+?
      • 1...Kd6
        • 2.Qd7#
      • 1...Kb5!
    • 1.Bh1?
      • 1...Kb5
        • 2.Sd6#
      • 1...Kd5
        • 2.Qd7#
      • 1...Bb7!
    • 1.Bg2?
      • 1...Kb5
        • 2.Sd6#
      • 1...Kd5
        • 2.Qd7#
      • 1...Bb7!
    • 1.Bg4?
      • 1...Kd5
        • 2.Qxa8#
      • 1...Bb7
        • 2.Qc5#
      • 1...Kb5!
    • 1.d5+?
      • 1...Kb5
        • 2.Sd6#
        • 2.Be2#
      • 1...Kxd5!
  • Keys
    • 1.Sc5+!
      • 1...Kb5
        • 2.Qa6#
      • 1...Kd6
        • 2.Qd7#

This is after

After W. Speckmann.

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);S_FLIGHT::S(D)
    • K(a);S_FLIGHT::QAR2(E)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • B(b);
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • B(b);
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::S(D)
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • B(b);
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::S(D)
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • B(b);
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::QAB(E),XB(b)
        • B(b);SBLOCK::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(C)
  • Actual
    • S(D);CHECK
    • Vars
      • K(a);S_FLIGHT::QAB1(E)
      • K(a);P-FLIGHT::QAR1(E)
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