MESON Chess Problem Database

Problem Display
PID: 242032 (8/8/8/8/8/1p2K3/6N1/NQnk4 w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1936

8/8/8/8/8/1p2K3/6N1/NQnk4

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...b2
      • 2.Qc2#
  • Tries
    • 1.Kf2?
      • 1...b2
        • 2.Qc2#
      • 1...Kd2!
    • 1.Kf3?
      • 1...b2
        • 2.Qc2#
      • 1...Kd2!
    • 1.Se1?
      • 1...Kxe1
        • 2.Qxc1#
      • 1...b2!
    • 1.Sf4?
      • 1...Ke1
        • 2.Qxc1#
      • 1...b2!
    • 1.Sh4?
      • 1...Ke1
        • 2.Qxc1#
      • 1...b2!
  • Keys
    • 1.Qb2!
      • threat
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • P(c);N_GUARD::QAB1(B)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • P(c);N_GUARD::QAB1(B)
      • Refutation
        • K(b);N_SPINS(a),P-FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • P(c);N_GUARD::QAB1(B)
      • Refutation
        • K(b);N_SPINS(a),P-FLIGHT
    • Try
      • S(C);
      • Vars
        • K(b);P-FLIGHT,XS(C)::QAR2(B),XS(a)
      • Refutation
        • P(c);
    • Try
      • S(C);
      • Vars
        • K(b);P-FLIGHT::QAR2(B),XS(a)
      • Refutation
        • P(c);
    • Try
      • S(C);
      • Vars
        • K(b);P-FLIGHT::QAR2(B),XS(a)
      • Refutation
        • P(c);
  • Actual
    • Q(B);N_PINS(a)
    • Threat
      • QAR1(B)
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Developed and maintained by Brian Stephenson.
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