MESON Chess Problem Database

Problem Display
PID: 102282 (8/3r1N1B/3pPpPb/5k1p/Q6p/1p5K/4N3/8 w - - 0 1)

Rduch, Frantisek

Nya Dagligt Allehanda, 1924

8/3r1N1B/3pPpPb/5k1p/Q6p/1p5K/4N3/8

#2

7 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Qe4#
  • Tries
    • 1.Sg3+?
      • 1...Kxe6
        • 2.Qe4#
      • 1...hxg3!
    • 1.Sxh6+?
      • 1...Kg5
        • 2.Qf4#
      • 1...Kxe6
        • 2.Qe4#
      • 1...Ke5!
    • 1.Qc4?
      • threat
        • 2.Qd5#
        • 2.g7#
      • 1...Rxf7
        • 2.Qd5#
      • 1...Bf4
        • 2.g7#
      • 1...Bg7
        • 2.Qd5#
      • 1...d5!
    • 1.Qf4+?
      • 1...Kxe6
        • 2.Qe4#
      • 1...Bxf4!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qd5#
      • 1...Kxe6
        • 2.Qe4#
      • 1...Bf4
        • 2.Sd4#
      • 1...d5
        • 2.g7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT,XP(D)::QAR2(C)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(c);S_FLIGHT,XP(D)::QAR2(C)
      • Refutation
        • P(b);XS(A)
    • Try
      • S(F);CHECK,XB(g)
      • Vars
        • K(c);P-FLIGHT::QAB1(C)
        • K(c);S_FLIGHT,XP(D)::QAR2(C)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(h);XS(F)::QAR2(C)
        • B(g);::B(G)+P(E)
        • B(g);::QAR2(C)
      • Refutation
        • P(e);
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);S_FLIGHT,XP(D)::QAR2(C)
      • Refutation
        • B(g);XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAR2(C)
    • Vars
      • K(c);P_SPINP(e),S_FLIGHT,XP(D)::QAR2(C)
      • B(g);SBLOCK::S(A)
      • P(e);::B(G)+P(E)
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