MESON Chess Problem Database

Problem Display
PID: 235015 (1B6/3NP3/Bp2p1R1/bPrk4/p1RN4/1p1p1P2/rn2P2K/q2n2Q1 w - - 0 1)

Erokhin, Vladimir Alekseevich

Hlas l'udu, 1976

1B6/3NP3/Bp2p1R1/bPrk4/p1RN4/1p1p1P2/rn2P2K/q2n2Q1

#2

12 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.e4#
    • 1...Be1
      • 2.Sxb6#
    • 1...Bd2
      • 2.Sxb6#
    • 1...Bc3
      • 2.Sxb6#
    • 1...Bb4
      • 2.Sxb6#
    • 1...Sxc4
      • 2.Sf6#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Rd4#
        • 2.Qd4#
      • 1...Kxc4
        • 2.Qd4#
      • 1...Rxc4
        • 2.Sf6#
      • 1...Rxb5
        • 2.Qd4#
      • 1...Sxc4
        • 2.e4#
      • 1...Bc3
        • 2.Sxb6#
      • 1...Sf2
        • 2.Se3#
        • 2.Rd4#
      • 1...Se3
        • 2.Sxe3#
        • 2.Rd4#
      • 1...e5!
  • Keys
    • 1.Sxe6!
      • threat
        • 2.Rd4#
        • 2.Qd4#
      • 1...Kxc4
        • 2.Qd4#
      • 1...Rxc4
        • 2.Qg5#
      • 1...Rxb5
        • 2.Qd4#
      • 1...Sxc4
        • 2.Sf4#
      • 1...Bc3
        • 2.Sxb6#
      • 1...Sf2
        • 2.Rd4#
      • 1...Se3
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(i);SBLOCK,XR(E)::P(B)
    • B(h);N_GUARD::S(J),XP(k)
    • S(d);P_PINP(B),SBLOCK,XR(E)::S(J)
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(j);S_FLIGHT,XR(E)::QAR1(A)
        • R(i);SBLOCK,XR(E)::S(J)
        • R(i);XP(G)::QAR1(A)
        • S(d);SBLOCK,XR(E)::P(B)
        • B(h);N_GUARD::S(J),XP(k)
      • Refutation
        • P(l);
  • Actual
    • S(F);XP(l)
    • Threat
      • DUALS(2)
    • Vars
      • K(j);S_FLIGHT,XR(E)::QAR1(A)
      • R(i);SBLOCK,XR(E)::QAR(A)
      • R(i);XP(G)::QAR1(A)
      • S(d);P_PINP(B),SBLOCK,XR(E)::S(F)
      • B(h);N_GUARD::S(J),XP(k)
      • S(b);::R1(E)
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