MESON Chess Problem Database

Problem Display
PID: 242043 (8/1p6/1Q1N4/1N6/1k6/p7/K7/8 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1936

8/1p6/1Q1N4/1N6/1k6/p7/K7/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ka4
      • 2.Sc3#
  • Tries
    • 1.Sxa3+?
      • 1...Ka4
        • 2.Qb5#
      • 1...Kc3!
    • 1.Sd4+?
      • 1...Ka4
        • 2.Qb5#
      • 1...Kc3!
    • 1.Sa7+?
      • 1...Ka4
        • 2.Qb5#
      • 1...Kc3!
    • 1.Sc7+?
      • 1...Ka4
        • 2.Qb5#
      • 1...Kc3!
    • 1.Sc4?
      • 1...Ka4
        • 2.Sc3#
        • 2.Qa5#
      • 1...Kxc4!
    • 1.Se4?
      • 1...Ka4
        • 2.Sbc3#
      • 1...Kc4!
    • 1.Sf5?
      • 1...Ka4
        • 2.Sc3#
      • 1...Kc4!
    • 1.Sxb7?
      • 1...Ka4
        • 2.Sc3#
        • 2.Qa5#
      • 1...Kc4!
    • 1.Sf7?
      • 1...Ka4
        • 2.Sc3#
      • 1...Kc4!
    • 1.Sc8?
      • 1...Ka4
        • 2.Sc3#
      • 1...Kc4!
    • 1.Se8?
      • 1...Ka4
        • 2.Sc3#
      • 1...Kc4!
    • 1.Qe3?
      • threat
        • 2.Qxa3#
      • 1...Ka4
        • 2.Qxa3#
      • 1...Ka5!
  • Keys
    • 1.Qa7!
      • 1...b6
        • 2.Qxa3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(b);P-FLIGHT::S(B)
  • Tries
    • Try
      • S(B);CHECK,XP(a)
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);
      • Refutation
        • K(b);P-FLIGHT,XS(D)
    • Try
      • S(D);
      • Vars
        • K(b);P-FLIGHT::S(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);P-FLIGHT::S(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);XP(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);P-FLIGHT::S(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);P-FLIGHT::S(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);P-FLIGHT::S(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAB1(C),XP(a)
      • Vars
        • K(b);P-FLIGHT::QAR1(C),XP(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • P(c);::QAB1(C),XP(a)
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