MESON Chess Problem Database

Problem Display
PID: 63286 (3r1B2/5R1p/2p5/qppkp1QK/8/pP3RNB/3r4/8 w - - 0 1)

Rukhlis, Efim Naumovich

Sachove umeni (Ceskoslovensky sach), 1976

3r1B2/5R1p/2p5/qppkp1QK/8/pP3RNB/3r4/8

#2

8 + 10

3771 FIDE Album (1974-1976) 1980

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Qxd8#
    • 1...Qb4
      • 2.Qxd8#
    • 1...Qb6
      • 2.Qxd2#
    • 1...Qc7
      • 2.Qxd2#
    • 1...Qa4
      • 2.Qxd8#
    • 1...Qa6
      • 2.Qxd2#
      • 2.Qxd8#
    • 1...Qa7
      • 2.Qxd2#
    • 1...Qa8
      • 2.Qxd2#
    • 1...Ra2
      • 2.Rd3#
    • 1...Rb2
      • 2.Rd3#
    • 1...Rc2
      • 2.Rd3#
    • 1...Re2
      • 2.Rd3#
    • 1...Rf2
      • 2.Rd3#
    • 1...Rg2
      • 2.Rd3#
    • 1...Rh2
      • 2.Rd3#
    • 1...Rd3
      • 2.Rxd3#
    • 1...Rd7
      • 2.Rxd7#
    • 1...Ra8
      • 2.Rd7#
    • 1...Rb8
      • 2.Rd7#
    • 1...Rc8
      • 2.Rd7#
    • 1...Re8
      • 2.Rd7#
    • 1...Rxf8
      • 2.Rd7#
    • 1...b4
      • 2.Qxd2#
  • Tries
    • 1.Be6+?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kxe6!
    • 1.Rc3?
      • threat
        • 2.Qxd2#
      • 1...Kd4
        • 2.Qxd2#
      • 1...Qxc3
        • 2.Qxd8#
      • 1...Qb4
        • 2.Qxd8#
      • 1...Qa4
        • 2.Qxd8#
      • 1...Ra2
        • 2.Rd3#
      • 1...Rb2
        • 2.Rd3#
      • 1...Rc2
        • 2.Rd3#
      • 1...Re2
        • 2.Rd3#
      • 1...Rf2
        • 2.Rd3#
      • 1...Rg2
        • 2.Rd3#
      • 1...Rh2
        • 2.Rd3#
      • 1...Rd3
        • 2.Rxd3#
      • 1...Rd4
        • 2.Rxc5#
      • 1...Rd1!
    • 1.Re3?
      • threat
        • 2.Qxe5#
      • 1...Kd4
        • 2.Qxe5#
      • 1...Qc3
        • 2.Qxd8#
      • 1...Re8
        • 2.Rd7#
      • 1...Qc7!
    • 1.Rc7?
      • threat
        • 2.Qxd8#
      • 1...Kd4
        • 2.Qxd8#
      • 1...Qxc7
        • 2.Qxd2#
      • 1...Rxf8
        • 2.Rd7#
      • 1...Qa8
        • 2.Qxd2#
      • 1...Rd7
        • 2.Rxd7#
      • 1...Ra8
        • 2.Rd7#
      • 1...Rb8
        • 2.Rd7#
      • 1...Rc8
        • 2.Rd7#
      • 1...Re8
        • 2.Rd7#
      • 1...Rd6!
    • 1.Re7?
      • threat
        • 2.Qxe5#
      • 1...Kd4
        • 2.Qxe5#
      • 1...Kd6
        • 2.Rd7#
        • 2.Qxe5#
      • 1...Qc7
        • 2.Qxd2#
      • 1...Re2
        • 2.Rd3#
      • 1...Qc3!
    • 1.Qh4?
      • threat
        • 2.Qe4#
      • 1...Rxf8
        • 2.Rd7#
      • 1...e4
        • 2.Qxe4#
      • 1...Qb4
        • 2.Qxd8#
      • 1...Qa4
        • 2.Qxd8#
      • 1...Re2
        • 2.Rd3#
      • 1...Rd4!
  • Keys
    • 1.Bg7!
      • threat
        • 2.Qxe5#
      • 1...Kd4
        • 2.Qxe5#
      • 1...Kd6
        • 2.Qxe5#
      • 1...Qc3
        • 2.Qxd8#
      • 1...Qc7
        • 2.Qxd2#
      • 1...Re2
        • 2.Rd3#
      • 1...Re8
        • 2.Rd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 18
  • Sets
    • Q(c);N_GUARD::QAR(E),XR(j)
    • Q(c);N_GUARD::QAR(E),XR(a)
    • R(a);N_GUARD::R(B)
    • R(a);N_GUARD,P_PINB(D)::R(B)
    • R(a);N_GUARD::R(B),XR(a)
    • R(j);N_GUARD::R(G),XR(j)
    • R(j);N_GUARD::R(G)
    • R(j);N_GUARD,XB(H)::R(G)
    • P(d);S_CUTQ(c)::QAR(E),XR(a)
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • K(f);N_SPINP(g),P-FLIGHT::QAB1(E)
      • Refutation
        • K(f);N_SPINP(g),S_FLIGHT,XB(D)
    • Try
      • R(B);
      • Threat
        • QAR(E),XR(a)
      • Vars
        • K(f);N_SPINP(g),P-FLIGHT::QAR2(E),XR(a)
        • Q(c);N_GUARD,XR(B)::QAR(E),XR(j)
        • Q(c);N_GUARD::QAR(E),XR(j)
        • R(a);N_GUARD::R(B)
        • R(a);N_GUARD,P_PINB(D)::R(B)
        • R(a);N_GUARD::R(B),XR(a)
        • R(a);SBLOCK::R1(B),XP(e)
      • Refutation
        • R(a);
    • Try
      • R(B);
      • Threat
        • QAR1(E),XP(g)
      • Vars
        • K(f);N_SPINP(g),P-FLIGHT::QAB1(E),XP(g)
        • Q(c);N_GUARD::QAR(E),XR(j)
        • R(j);N_GUARD::R(G)
      • Refutation
        • Q(c);
    • Try
      • R(G);
      • Threat
        • QAR(E),XR(j)
      • Vars
        • K(f);N_SPINP(g),P-FLIGHT::QAR(E),XR(j)
        • Q(c);N_GUARD,XR(G)::QAR(E),XR(a)
        • R(j);N_GUARD,XB(H)::R(G)
        • Q(c);N_GUARD::QAR(E),XR(a)
        • R(j);N_GUARD::R(G),XR(j)
        • R(j);N_GUARD::R(G)
      • Refutation
        • R(j);
    • Try
      • R(G);
      • Threat
        • QAR1(E),XP(g)
      • Vars
        • K(f);N_SPINP(g),P-FLIGHT::QAB1(E),XP(g)
        • Q(c);N_GUARD::QAR(E),XR(a)
        • R(a);N_GUARD::R(B)
      • Refutation
        • Q(c);
    • Try
      • Q(E);N_PINP(g)
      • Threat
        • QAB1(E)
      • Vars
        • R(j);N_GUARD,XB(H)::R(G)
        • P(g);::QAB1(E),XP(g)
        • Q(c);N_GUARD::QAR(E),XR(j)
        • R(a);N_GUARD::R(B)
      • Refutation
        • R(a);
  • Actual
    • B(H);
    • Threat
      • QAR1(E),XP(g)
    • Vars
      • K(f);P-FLIGHT::QAB1(E),XP(g)
      • K(f);N_SPINP(g),P-FLIGHT::QAB1(E),XP(g)
      • Q(c);N_GUARD::QAR(E),XR(j)
      • Q(c);N_GUARD::QAR(E),XR(a)
      • R(a);N_GUARD::R(B)
      • R(j);N_GUARD::R(G)
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