MESON Chess Problem Database

Problem Display
PID: 231459 (8/8/5N2/4pkPP/8/6K1/3Q4/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1927

8/8/5N2/4pkPP/8/6K1/3Q4/8

#2

5 + 2

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qd7#
    • 1...e4
      • 2.Qd5#
  • Tries
    • 1.Kf2?
      • 1...Ke6
        • 2.Qd7#
      • 1...e4!
    • 1.Kg2?
      • 1...Ke6
        • 2.Qd7#
      • 1...e4!
    • 1.Kh2?
      • 1...Ke6
        • 2.Qd7#
      • 1...e4!
    • 1.Kf3?
      • 1...Ke6
        • 2.Qd7#
      • 1...e4+!
    • 1.Kh3?
      • 1...Ke6
        • 2.Qd7#
      • 1...e4!
    • 1.Kh4?
      • 1...Ke6
        • 2.Qd7#
      • 1...e4!
    • 1.Se8?
      • 1...Ke4
        • 2.Sd6#
      • 1...e4
        • 2.Qd5#
      • 1...Ke6!
    • 1.Qd1?
      • threat
        • 2.Qg4#
      • 1...Ke6
        • 2.Qd7#
      • 1...e4
        • 2.Qd5#
      • 1...Kxg5!
    • 1.Qa2?
      • 1...e4
        • 2.Qd5#
      • 1...Kxg5!
    • 1.Qd6?
      • 1...e4
        • 2.Qd5#
      • 1...Kxg5!
    • 1.Qd8?
      • 1...Ke6
        • 2.Qd7#
      • 1...e4
        • 2.Qd5#
      • 1...Kxg5!
  • Keys
    • 1.Qd3+!
      • 1...Kxg5
        • 2.Qg6#
      • 1...Ke6
        • 2.Qd7#
      • 1...e4
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(A)
    • P(a);OGATEB::QAR2(A)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • P(a);CHECK
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • S(E);
      • Vars
        • K(b);S_FLIGHT::S(E)
        • P(a);OGATEB::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(a);OGATEB::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT,XP(C)
    • Try
      • Q(A);
      • Vars
        • P(a);OGATEB::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT,XP(C)
    • Try
      • Q(A);
      • Vars
        • P(a);OGATEB::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT,XP(C)
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(a);OGATEB::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT,XP(C)
  • Actual
    • Q(A);CHECK
    • Vars
      • K(b);OGATE,P-FLIGHT,XP(C)::QAR1(A)
      • K(b);S_FLIGHT::QAB1(A)
      • P(a);OGATEB,P_SPINP(a)::QAR2(A)
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