MESON Chess Problem Database

Problem Display
PID: 225704 (8/3b1p2/5p2/2Ppkpp1/1Q6/4p2B/1K1N1N2/8 w - - 0 1)

Polacek, Ladislav

Praca, 1954

8/3b1p2/5p2/2Ppkpp1/1Q6/4p2B/1K1N1N2/8

#2

6 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be6
      • 2.Sf3#
      • 2.Sd3#
    • 1...f4
      • 2.Sf3#
      • 2.Sd3#
  • Tries
    • 1.Qd4+?
      • 1...Ke6
        • 2.Qxe3#
      • 1...Kxd4!
    • 1.Qb8+?
      • 1...Ke6
        • 2.Qd6#
      • 1...Kd4!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qxe3#
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf4
        • 2.Qb8#
      • 1...Ke6
        • 2.Qxe3#
      • 1...exd2
        • 2.Qe3#
      • 1...exf2
        • 2.Qe3#
      • 1...d4
        • 2.Sd3#
      • 1...e2
        • 2.Qe3#
      • 1...f4
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINP(d)::QAR(E),XP(a)
      • Refutation
        • K(c);S_FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINP(d)::QAR1(E)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(E);
    • Threat
      • QAR2(E),XP(a)
    • Vars
      • K(c);S_FLIGHT::QAB1(E)
      • K(c);S_FLIGHT::QAB(E)
      • K(c);P-FLIGHT,P_SPINP(b)::QAR(E),XP(a)
      • P(a);XS(B)::QAR2(E)
      • P(a);XS(C)::QAR2(E)
      • P(b);SBLOCK::S(C)
      • P(a);::QAR2(E)
      • P(d);SBLOCK::S(B)
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