MESON Chess Problem Database

Problem Display
PID: 234581 (8/8/1K6/1R1p4/2k5/5Q2/1p3p2/8 w - - 0 1)

Speckmann, Werner

Source?, 0000

8/8/1K6/1R1p4/2k5/5Q2/1p3p2/8

#2

3 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Qb3#
  • Keys
    • 1.Rb3!
      • threat
        • 2.Qc3#
        • 2.Qd3#
      • 1...Kd4
        • 2.Qf4#
      • 1...b1Q
        • 2.Qc3#
      • 1...b1S
        • 2.Qd3#
      • 1...b1B
        • 2.Qc3#
      • 1...f1Q
        • 2.Qc3#
      • 1...f1B
        • 2.Qc3#
      • 1...d4
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(d);SBLOCK::QAB1(A)
  • Actual
    • R(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);P-FLIGHT::QAR2(A)
      • P(a);P_PINR(B)::QAR1(A)
      • P(a);::QAB1(A)
      • P(a);::QAR1(A)
      • P(b);::QAR1(A)
      • P(d);OGATEB,SBLOCK::QAB(A)
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