MESON Chess Problem Database

Problem Display
PID: 46283 (2Nb4/6r1/k7/8/K1RQ4/8/8/8 w - - 0 1)

Sushkov, Yuri Akimovich

Sovietskaya Chuvashiya, 1978

2Nb4/6r1/k7/8/K1RQ4/8/8/8

#2

4 + 3

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Kb7
      • 2.Qa7#
    • 1...Rg1
      • 2.Qa7#
    • 1...Rg2
      • 2.Qa7#
    • 1...Rg3
      • 2.Qa7#
    • 1...Rg4
      • 2.Qa7#
    • 1...Rg5
      • 2.Qa7#
    • 1...Rg6
      • 2.Qa7#
    • 1...Ra7
      • 2.Qxa7#
    • 1...Rc7
      • 2.Qb6#
    • 1...Rg8
      • 2.Qa7#
    • 1...Bh4
      • 2.Qb6#
    • 1...Bg5
      • 2.Qb6#
    • 1...Bb6
      • 2.Qxb6#
    • 1...Bf6
      • 2.Qb6#
    • 1...Bc7
      • 2.Qa7#
    • 1...Be7
      • 2.Qb6#
      • 2.Qa7#
  • Tries
    • 1.Rb4?
      • threat
        • 2.Qd3#
        • 2.Qc4#
      • 1...Bb6
        • 2.Rxb6#
        • 2.Qxb6#
      • 1...Rg4
        • 2.Qa7#
      • 1...Rg3
        • 2.Qa7#
        • 2.Qc4#
      • 1...Rg5
        • 2.Qa7#
      • 1...Rc7
        • 2.Rb6#
        • 2.Qb6#
      • 1...Rd7
        • 2.Qc4#
      • 1...Rb7!
    • 1.Rc6+?
      • 1...Bb6
        • 2.Rxb6#
        • 2.Qxb6#
      • 1...Kb7!
    • 1.Qc5?
      • threat
        • 2.Qb5#
      • 1...Kb7
        • 2.Qa7#
      • 1...Rg5
        • 2.Qa7#
      • 1...Bb6
        • 2.Qxb6#
      • 1...Rb7!
    • 1.Qd6+?
      • 1...Bb6
        • 2.Qxb6#
      • 1...Kb7!
  • Keys
    • 1.Rc7!
      • threat
        • 2.Qb6#
        • 2.Qa7#
        • 2.Qd3#
        • 2.Qc4#
        • 2.Qd6#
      • 1...Rxc7
        • 2.Qb6#
      • 1...Bxc7
        • 2.Qa7#
      • 1...Rg3
        • 2.Ra7#
        • 2.Qb6#
        • 2.Qa7#
        • 2.Qc4#
        • 2.Qd6#
      • 1...Rg4
        • 2.Ra7#
      • 1...Rg5
        • 2.Ra7#
        • 2.Qb6#
        • 2.Qa7#
        • 2.Qd6#
      • 1...Rg6
        • 2.Ra7#
        • 2.Qa7#
        • 2.Qd3#
        • 2.Qc4#
      • 1...Rd7
        • 2.Qb6#
        • 2.Qa7#
        • 2.Qc4#
      • 1...Be7
        • 2.Ra7#
        • 2.Qb6#
        • 2.Qa7#
        • 2.Qd3#
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 12
  • Sets
    • K(a);S_FLIGHT::QAR1(C)
    • R(b);N_GUARD::QAR1(C)
    • R(b);N_GUARD::QAR1(C),XR(b)
    • R(b);S_CUTB(c)::QAR1(C)
    • B(c);N_GUARD::QAR1(C)
    • B(c);N_GUARD::QAR1(C),XB(c)
    • B(c);S_CUTR(b)::QAR1(C)
  • Tries
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);N_GUARD::QAR1(C)
        • R(b);::QAB(C)
      • Refutation
        • R(b);
    • Try
      • R(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • R(b);N_GUARD::QAR1(C)
        • B(c);N_GUARD::QAR1(C),XB(c)
      • Refutation
        • R(b);
    • Try
      • Q(C);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAR1(C),XB(c)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(B);
    • Threat
      • DUALS(5)
    • Vars
      • R(b);XR(B)::QAR1(C)
      • B(c);XR(B)::QAR1(C)
      • R(b);N_GUARD,P_PINQ(C)::R1(B)
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