MESON Chess Problem Database

Problem Display
PID: 155620 (3r4/4p1N1/2QP2p1/4k3/4pR2/b2p2K1/8/8 w - - 0 1)

Latzel, Gerhard Paul

Deutsche Schachzeitung, 1955

3r4/4p1N1/2QP2p1/4k3/4pR2/b2p2K1/8/8

#2

5 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Rxe4#
    • 1...Rxd6
      • 2.Qxe4#
    • 1...Bc1
      • 2.Qc5#
    • 1...Bb2
      • 2.Qc5#
    • 1...Bc5
      • 2.Qxc5#
    • 1...Bxd6
      • 2.Qxe4#
    • 1...exd6
      • 2.Qxe4#
  • Tries
    • 1.d7?
      • threat
        • 2.Rxe4#
      • 1...Kd4
        • 2.Rxe4#
      • 1...Bd6
        • 2.Qxe4#
      • 1...e3
        • 2.Re4#
        • 2.Qe6#
      • 1...e6!
  • Keys
    • 1.dxe7!
      • threat
        • 2.Rxe4#
      • 1...Kd4
        • 2.Rxe4#
      • 1...Rd4
        • 2.Qe6#
      • 1...Rd5
        • 2.Qf6#
      • 1...Rd6
        • 2.Qxe4#
      • 1...Bd6
        • 2.Qxe4#
      • 1...e3
        • 2.Re4#
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • K(d);P_SPINP(c),S_FLIGHT::R1(B),XP(c)
    • R(g);SBLOCK,XP(D)::QAR1(C),XP(c)
    • B(a);N_GUARD::QAR2(C)
    • B(a);N_GUARD::QAR2(C),XB(a)
    • B(a);SBLOCK,XP(D)::QAR1(C),XP(c)
    • P(f);SBLOCK,XP(D)::QAR1(C),XP(c)
  • Tries
    • Try
      • P(D);
      • Threat
        • R1(B),XP(c)
      • Vars
        • K(d);P_SPINP(c),S_FLIGHT::R1(B),XP(c)
        • B(a);SBLOCK::QAR1(C),XP(c)
      • Refutation
        • P(f);
  • Actual
    • P(D);XP(f)
    • Threat
      • R1(B),XP(c)
    • Vars
      • K(d);P_SPINP(c),S_FLIGHT::R1(B),XP(c)
      • R(g);SBLOCK::QAR1(C)
      • R(g);SBLOCK::QAB1(C)
      • R(g);SBLOCK::QAR1(C),XP(c)
      • B(a);SBLOCK::QAR1(C),XP(c)
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