MESON Chess Problem Database

Problem Display
PID: 224385 (8/1p4K1/q3B1p1/4k3/3R4/2Q5/3Pr3/4r3 w - - 0 1)

Pollak, Michal

Brownson's Chess Journal, 1887

8/1p4K1/q3B1p1/4k3/3R4/2Q5/3Pr3/4r3

#2

5 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rd3+?
      • 1...Ke4
        • 2.Qd4#
      • 1...Kxe6
        • 2.Qf6#
      • 1...Kf4!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qd5#
        • 2.Qf6#
      • 1...Kxd4
        • 2.Qd5#
      • 1...Kxe6
        • 2.Qf6#
      • 1...Qxe6
        • 2.Qf4#
      • 1...Qc4
        • 2.Qf6#
      • 1...Qb5
        • 2.Qf6#
      • 1...Qa2
        • 2.Qf6#
      • 1...Qa5
        • 2.Qf6#
      • 1...Qc6
        • 2.Qf6#
      • 1...Qd6
        • 2.Qf6#
      • 1...Rf1
        • 2.Qd5#
      • 1...Rf2
        • 2.Qd5#
      • 1...Re4
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
        • K(c);OGATE,P-FLIGHT,XB(D)::QAR1(B)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);S_FLIGHT,XR(C)::QAR1(B)
      • K(c);P-FLIGHT,XB(D)::QAR1(B)
      • Q(d);SBLOCK,XB(D)::QAB1(B)
      • Q(d);::QAB1(B)
      • R(a);::QAR1(B)
      • R(b);::QAR1(B)
      • R(b);::QAB1(B)
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