MESON Chess Problem Database

Problem Display
PID: 236989 (n5Q1/p3K1P1/2p1N3/2p2N1R/4kPP1/r2p4/3RB3/8 w - - 0 1)

Erokhin, Vladimir Alekseevich

Szachy, 1980

n5Q1/p3K1P1/2p1N3/2p2N1R/4kPP1/r2p4/3RB3/8

#2

10 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Sd6#
      • 2.Sg5#
  • Tries
    • 1.Bf1?
      • threat
        • 2.Bg2#
      • 1...Kd5
        • 2.Sd6#
        • 2.Sg5#
      • 1...Kf3!
    • 1.Qxa8?
      • threat
        • 2.Qxc6#
      • 1...Kd5
        • 2.Sd6#
      • 1...Ra6!
    • 1.Qb8?
      • threat
        • 2.Qe5#
      • 1...Kd5
        • 2.Sd6#
      • 1...dxe2
        • 2.Sg5#
      • 1...Sc7!
  • Keys
    • 1.Rh3!
      • threat
        • 2.Bf3#
      • 1...Kd5
        • 2.Sg5#
      • 1...dxe2
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);
      • Threat
        • B(B)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(J);P_PINP(e),XS(g)
      • Threat
        • QAB(J),XP(e)
      • Vars
        • K(c);N_SPINP(e),P_SPINP(b),S_FLIGHT::R(F)+S(E)
      • Refutation
        • R(a);
    • Try
      • Q(J);
      • Threat
        • QAR1(J)
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::R(F)+S(E)
        • P(b);XB(B)::S(G)
      • Refutation
        • S(g);
  • Actual
    • R(F);
    • Threat
      • B(B)
    • Vars
      • K(c);P_SPINP(b),S_FLIGHT::QAB(J)+S(G)
      • P(b);XB(B)::S(E)
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