MESON Chess Problem Database

Problem Display
PID: 231545 (8/8/5p2/5K2/8/2B1kp2/2Q5/2b5 w - - 0 1)

Schiffert, Gyorgy

Magyar Sakkvilag, 1927

8/8/5p2/5K2/8/2B1kp2/2Q5/2b5

#2

3 + 4

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Qd2#
    • 1...Bd2
      • 2.Qxd2#
    • 1...Ba3
      • 2.Qd2#
    • 1...f2
      • 2.Qe4#
  • Tries
    • 1.Be1?
      • threat
        • 2.Bf2#
        • 2.Qe4#
      • 1...Bd2
        • 2.Qe4#
        • 2.Qxd2#
      • 1...f2
        • 2.Qe4#
      • 1...Kd4!
    • 1.Ba5?
      • threat
        • 2.Bb6#
      • 1...Bd2
        • 2.Qxd2#
      • 1...f2
        • 2.Qe4#
      • 1...Bb2
        • 2.Qd2#
      • 1...Ba3
        • 2.Qd2#
      • 1...Kd4!
    • 1.Qd1?
      • threat
        • 2.Bd4#
      • 1...Bd2
        • 2.Qxd2#
      • 1...Bb2
        • 2.Qd2#
      • 1...Kf2!
  • Keys
    • 1.Bb4!
      • threat
        • 2.Bc5#
      • 1...Kd4
        • 2.Qe4#
      • 1...Bd2
        • 2.Qxd2#
      • 1...f2
        • 2.Qe4#
      • 1...Bb2
        • 2.Qd2#
      • 1...Ba3
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAB1(A)
    • B(a);N_GUARD::QAB1(A),XB(a)
    • P(c);SBLOCK::QAR1(A)
  • Tries
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(B);
      • Threat
        • B(B)
      • Vars
        • B(a);N_GUARD::QAB1(A),XB(a)
        • P(c);SBLOCK::QAR1(A)
        • B(a);N_GUARD::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • B(B)
      • Vars
        • B(a);N_GUARD::QAB1(A),XB(a)
        • B(a);N_GUARD::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(B);
    • Threat
      • B(B)
    • Vars
      • K(b);S_FLIGHT::QAR1(A)
      • B(a);N_GUARD::QAB1(A),XB(a)
      • P(c);SBLOCK::QAR1(A)
      • B(a);N_GUARD::QAB1(A)
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Developed and maintained by Brian Stephenson.
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