MESON Chess Problem Database

Problem Display
PID: 51833 (8/b2p4/5K2/N2k4/1Q6/3b2P1/8/6B1 w - - 0 1)

Latzel, Gerhard Paul

Problem (Zagreb), 1952

8/b2p4/5K2/N2k4/1Q6/3b2P1/8/6B1

#2

5 + 4

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4+
      • 2.Qxd4#
    • 1...Bb8
      • 2.Qd4#
    • 1...d6
      • 2.Qb7#
  • Tries
    • 1.Bc5?
      • threat
        • 2.Qd4#
      • 1...Bc4
        • 2.Qxc4#
      • 1...Bxc5!
    • 1.Qc3?
      • threat
        • 2.Qe5#
      • 1...Bd4+
        • 2.Qxd4#
      • 1...Kd6
        • 2.Qe5#
      • 1...Bb8
        • 2.Qd4#
        • 2.Qxd3#
      • 1...d6
        • 2.Qc6#
      • 1...Ke4!
    • 1.Qc5+?
      • 1...Ke4
        • 2.Qf5#
      • 1...Bxc5!
    • 1.Qc4+?
      • 1...Kd6
        • 2.Sb7#
      • 1...Bxc4!
    • 1.Qf4?
      • threat
        • 2.Qe5#
      • 1...Bd4+
        • 2.Qxd4#
      • 1...Bb8
        • 2.Qd4#
      • 1...d6!
  • Keys
    • 1.Qb2!
      • threat
        • 2.Qe5#
      • 1...Bd4+
        • 2.Qxd4#
      • 1...Ke4
        • 2.Qg2#
      • 1...Kd6
        • 2.Qe5#
      • 1...Bb8
        • 2.Qd4#
      • 1...d6
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(c);CHECK,N_GUARD::QAR1(C),XB(c)
    • B(c);N_GUARD::QAR1(C)
    • P(d);SBLOCK::QAB(C)
  • Tries
    • Try
      • B(A);
      • Threat
        • QAR1(C)
      • Vars
        • B(a);N_GUARD::QAB1(C),XB(a)
      • Refutation
        • B(c);XB(A)
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • B(c);CHECK,N_GUARD::QAR1(C),XB(c)
        • K(b);P-FLIGHT::QAB1(C)
        • P(d);N_GUARD::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(C)
      • Refutation
        • B(c);XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P-FLIGHT::S(D)
      • Refutation
        • B(a);XQ(C)
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • B(c);CHECK,N_GUARD::QAR1(C),XB(c)
        • B(c);N_GUARD::QAR1(C)
      • Refutation
        • P(d);
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • B(c);CHECK,N_GUARD::QAR1(C),XB(c)
      • K(b);S_FLIGHT::QAB(C)
      • K(b);P-FLIGHT::QAB1(C)
      • B(c);N_GUARD::QAR1(C)
      • P(d);SBLOCK::QAB(C)
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