MESON Chess Problem Database

Problem Display
PID: 43084 (2r1BbQ1/3np2K/N3Rp2/npPk1Np1/8/1p1P4/1P6/3R3b w - - 0 1)

Antonov, Yuri Mikhailovich

1st Prize, Molodoi Leninets, 1983

2r1BbQ1/3np2K/N3Rp2/npPk1Np1/8/1p1P4/1P6/3R3b

#2

10 + 11

3748 FIDE Album (1983-1985) 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc5
      • 2.Sb4#
    • 1...Sc6
      • 2.Rxe7#
    • 1...Sxc5
      • 2.Sb4#
    • 1...Se5
      • 2.Rd6#
    • 1...Sb6
      • 2.Rxe7#
    • 1...Sb8
      • 2.Rxe7#
  • Tries
    • 1.Rc1?
      • threat
        • 2.Sb4#
      • 1...Sc6
        • 2.Rxe7#
      • 1...b4
        • 2.Sxb4#
      • 1...Sc4!
    • 1.Ree1+?
      • 1...e6
        • 2.Qxe6#
      • 1...Kc6!
    • 1.Re2+?
      • 1...e6
        • 2.Qxe6#
      • 1...Kc6!
    • 1.Re3+?
      • 1...e6
        • 2.Qxe6#
      • 1...Kc6!
    • 1.Re4+?
      • 1...e6
        • 2.Qxe6#
      • 1...Kc6!
    • 1.Rb6+?
      • 1...e6
        • 2.Qxe6#
      • 1...Ke5!
    • 1.Rxf6+?
      • 1...e6
        • 2.Qxe6#
      • 1...Ke5!
  • Keys
    • 1.d4!
      • threat
        • 2.Se3#
      • 1...Kc4
        • 2.Se3#
      • 1...Se5
        • 2.Rxe5#
      • 1...Be4
        • 2.Rd6#
      • 1...Sc4
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(j);SBLOCK,XP(D)::S(F)
    • S(c);SBLOCK::QAB(J)+R(G),XP(i)
    • S(h);SBLOCK,XP(D)::S(F)
    • S(h);SBLOCK::QAB(J)+R(G),DCHECK
    • S(h);::QAB(J)+R(G),XP(i)
  • Tries
    • Try
      • R(A);
      • Threat
        • S(F)
      • Vars
        • S(c);SBLOCK::QAB(J)+R(G),XP(i)
        • P(d);::S(F),XP(d)
      • Refutation
        • S(c);
    • Try
      • R(G);CHECK
      • Vars
        • P(i);P_SPINP(i)::QAB1(J),XP(i)
      • Refutation
        • K(e);P_SPINS(h),S_FLIGHT
    • Try
      • R(G);CHECK
      • Vars
        • P(i);P_SPINP(i)::QAB1(J),XP(i)
      • Refutation
        • K(e);P_SPINS(h),S_FLIGHT
    • Try
      • R(G);CHECK
      • Vars
        • P(i);P_SPINP(i)::QAB1(J),XP(i)
      • Refutation
        • K(e);P_SPINS(h),S_FLIGHT
    • Try
      • R(G);CHECK
      • Vars
        • P(i);P_SPINP(i)::QAB1(J),XP(i)
      • Refutation
        • K(e);P_SPINS(h),S_FLIGHT
    • Try
      • R(G);CHECK
      • Vars
        • P(i);P_SPINP(i)::QAB1(J),XP(i)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • R(G);CHECK,XP(g)
      • Vars
        • P(i);P_SPINP(i)::QAB1(J),XP(i)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • P(C);
    • Threat
      • S(E)
    • Vars
      • K(e);S_FLIGHT::S(E)
      • S(h);::QAB(J)+R(G),DCHECK,XS(h)
      • B(a);P_PINS(E),SBLOCK::QAB(J)+R(G),DCHECK
      • S(c);SBLOCK::S(F)
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