MESON Chess Problem Database

Problem Display
PID: 177791 (1b6/3p4/1Rb2RK1/4kp2/4PNp1/2P5/3P4/1Q6 w - - 0 1)

Dombrovskis, Alfreds A

Erokhin, Vladimir Alekseevich

Comm., Sahs (Latvia), 1985

1b6/3p4/1Rb2RK1/4kp2/4PNp1/2P5/3P4/1Q6

#2

8 + 6

3713 Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Rxf5#
    • 1...Bb5
      • 2.Rxf5#
    • 1...Bd5
      • 2.Rxf5#
    • 1...Bb7
      • 2.Rxf5#
    • 1...Ba8
      • 2.Rxf5#
    • 1...Bd6
      • 2.Rxf5#
    • 1...d6
      • 2.Rxf5#
  • Tries
    • 1.Kg5?
      • threat
        • 2.Sg6#
        • 2.d4#
      • 1...Bxe4
        • 2.d4#
      • 1...fxe4!
    • 1.Sd5?
      • threat
        • 2.d4#
      • 1...Bxd5
        • 2.Rxf5#
      • 1...fxe4!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Sd3#
      • 1...Kxf4
        • 2.Rxf5#
      • 1...Bxe4
        • 2.Rxf5#
      • 1...fxe4
        • 2.d4#
      • 1...Bb5
        • 2.Rxf5#

This anticipates 109355(1991)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • B(d);::R1(G),XP(c)
    • B(f);SBLOCK::R1(G),XP(c)
    • P(e);SBLOCK::R1(G),XP(c)
  • Tries
    • Try
      • K(H);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • B(d);XP(D)::P(B)
      • Refutation
        • P(c);XP(D)
    • Try
      • S(E);
      • Threat
        • P(B)
      • Vars
        • B(d);XS(E)::R1(G),XP(c)
      • Refutation
        • P(c);XP(D)
  • Actual
    • Q(A);
    • Threat
      • S(E)
    • Vars
      • K(b);P_SPINP(c),S_FLIGHT,XS(E)::R1(G),XP(c)
      • B(d);P_SPINB(d),XP(D)::R1(G),XP(c)
      • P(c);P_SPINP(c),XP(D)::P(B)
      • B(d);::R1(G),XP(c)
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