MESON Chess Problem Database

Problem Display
PID: 273288 (R1Q4B/N6K/8/n2k2p1/1P2N3/3p1pP1/bPp2P2/2r1rB2 w - - 0 1)

Slesarenko, Anatoly Vasilevich

Springaren, 1990

R1Q4B/N6K/8/n2k2p1/1P2N3/3p1pP1/bPp2P2/2r1rB2

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bc4
      • 2.Qf5#
    • 1...Sb3
      • 2.Qc6#
    • 1...Sc4
      • 2.Qc6#
    • 1...Sc6
      • 2.Qxc6#
    • 1...Sb7
      • 2.Qc6#
    • 1...d2
      • 2.Qf5#
  • Tries
    • 1.Sxg5?
      • threat
        • 2.Qc5#
      • 1...Kd6
        • 2.Qd8#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sb3
        • 2.Qc6#
      • 1...Sb7
        • 2.Qc6#
      • 1...Re7+!
    • 1.Bxd3?
      • threat
        • 2.Qf5#
        • 2.Qd7#
        • 2.Qg8#
      • 1...Rxe4
        • 2.Qd7#
      • 1...Sc4
        • 2.Qc6#
        • 2.Qg8#
      • 1...Sc6
        • 2.Qd7#
        • 2.Qxc6#
        • 2.Qg8#
      • 1...Sb7
        • 2.Qf5#
        • 2.Qc6#
        • 2.Qg8#
      • 1...Rh1+!
    • 1.Bh3?
      • threat
        • 2.Qe6#
      • 1...Kxe4
        • 2.Qf5#
      • 1...Rxe4
        • 2.Qc5#
      • 1...g4!
    • 1.Qd7+?
      • 1...Kxe4
        • 2.Bxd3#
        • 2.Qxd3#
      • 1...Kc4!
    • 1.Qc5+?
      • 1...Kxe4
        • 2.Qe5#
      • 1...Ke6!
    • 1.b3?
      • threat
        • 2.Qf5#
      • 1...Kxe4
        • 2.Qe6#
      • 1...Rxe4
        • 2.Qd7#
      • 1...Sxb3
        • 2.Qc6#
      • 1...Sc4
        • 2.Qxc4#
        • 2.Qc6#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Bxb3!
  • Keys
    • 1.Qa6!
      • threat
        • 2.Sc3#
      • 1...Kxe4
        • 2.Qxd3#
      • 1...Rxe4
        • 2.Rd8#
      • 1...Sc6
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • B(c);SBLOCK::QAR2(J)
    • S(g);N_GUARD::QAB1(J)
    • S(g);N_GUARD::QAB1(J),XS(g)
    • P(e);::QAR2(J)
  • Tries
    • Try
      • S(F);XP(i)
      • Threat
        • QAR1(J)
      • Vars
        • K(h);N_GUARD,P-FLIGHT::QAR2(J)
        • S(g);N_GUARD::QAB1(J),XS(g)
        • S(g);N_GUARD::QAB1(J)
      • Refutation
        • R(b);CHECK
    • Try
      • B(A);XP(e)
      • Threat
        • DUALS(3)
      • Vars
        • R(b);XS(F)::QAR2(J)
      • Refutation
        • R(b);CHECK
    • Try
      • B(A);
      • Threat
        • QAB1(J)
      • Vars
        • K(h);N_GUARD,S_FLIGHT,XS(F)::QAB1(J)
        • R(b);SBLOCK,XS(F)::QAR1(J)
      • Refutation
        • P(i);
    • Try
      • Q(J);CHECK
      • Refutation
        • K(h);P_SPINP(e),S_FLIGHT
    • Try
      • Q(J);CHECK
      • Vars
        • K(h);OGATE,S_FLIGHT,XS(F)::QAR1(J)
      • Refutation
        • K(h);S_FLIGHT
    • Try
      • P(B);
      • Threat
        • QAR2(J)
      • Vars
        • K(h);N_GUARD,S_FLIGHT,XS(F)::QAR2(J)
        • R(b);SBLOCK,XS(F)::QAR2(J)
        • S(g);N_GUARD,XP(B)::QAB1(J)
        • S(g);N_GUARD::QAB1(J),XS(g)
      • Refutation
        • B(c);XP(B)
  • Actual
    • Q(J);
    • Threat
      • S(F)
    • Vars
      • K(h);N_GUARD,S_FLIGHT,XS(F)::QAB1(J),XP(e)
      • R(b);SBLOCK,XS(F)::R(I)
      • S(g);N_GUARD::QAB1(J),XS(g)
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