MESON Chess Problem Database

Problem Display
PID: 225347 (8/8/4p3/8/6K1/3Bkp2/1B6/1Q6 w - - 0 1)

Morra, Juan Carlos

Praca, 1957

8/8/4p3/8/6K1/3Bkp2/1B6/1Q6

#2

4 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Bc4?
      • threat
        • 2.Qe1#
      • 1...Kd2
        • 2.Qc1#
      • 1...f2
        • 2.Qd3#
      • 1...Kf2!
    • 1.Bb5?
      • threat
        • 2.Qe1#
      • 1...Kd2
        • 2.Qc1#
      • 1...f2
        • 2.Qd3#
      • 1...Kf2!
    • 1.Ba6?
      • threat
        • 2.Qe1#
      • 1...Kd2
        • 2.Qc1#
      • 1...f2
        • 2.Qd3#
      • 1...Kf2!
    • 1.Qc2?
      • 1...f2
        • 2.Qe2#
      • 1...e5!
  • Keys
    • 1.Bf1!
      • threat
        • 2.Qe1#
      • 1...Kd2
        • 2.Qc1#
      • 1...Kf2
        • 2.Bd4#
      • 1...f2
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);
      • Threat
        • QAR2(A)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);
      • Threat
        • QAR2(A)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);
      • Threat
        • QAR2(A)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(b);N_GUARD::QAR1(A)
      • Refutation
        • P(c);
  • Actual
    • B(C);
    • Threat
      • QAR2(A)
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);S_FLIGHT::B(B)
      • P(b);SBLOCK::QAR1(A)
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