MESON Chess Problem Database

Problem Display
PID: 7142 (KB2N3/1pR2rPb/4P2Q/3Nkp2/1P4P1/3P1R2/BP6/2q1r3 w - - 0 1)

Markovtsy, Vassyl Yuriovich

Probleemblad, 1998

KB2N3/1pR2rPb/4P2Q/3Nkp2/1P4P1/3P1R2/BP6/2q1r3

#2

14 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Qxf6#
    • 1...Rxc7
      • 2.Qf6#
    • 1...Rd7
      • 2.Qf6#
    • 1...Re7
      • 2.Qf6#
    • 1...Rxg7
      • 2.Qf6#
  • Tries
    • 1.Se7?
      • threat
        • 2.Rc4#
      • 1...Kd4
        • 2.Rd7#
      • 1...Qxh6
        • 2.Rd7#
      • 1...Qxc7
        • 2.Qf4#
      • 1...Rxe7
        • 2.Qf6#
      • 1...Qc4
        • 2.Rxc4#
      • 1...Qc5
        • 2.Qf4#
      • 1...Qc6
        • 2.Qf4#
      • 1...Rf6
        • 2.Qxf6#
      • 1...Bg6!
    • 1.Rxc1+?
      • 1...Rc7
        • 2.Qf6#
      • 1...Kd4!
    • 1.Rc2+?
      • 1...Rc7
        • 2.Qf6#
      • 1...Kd4!
    • 1.Rc3+?
      • 1...Rc7
        • 2.Qf6#
      • 1...Kd4!
    • 1.Rc5+?
      • 1...Rc7
        • 2.Qf6#
      • 1...Kd4!
    • 1.Rc6+?
      • 1...Rc7
        • 2.Qf6#
      • 1...Kd4!
    • 1.Rd7+?
      • 1...Kd4
        • 2.Se7#
      • 1...Qc7!
    • 1.Re7+?
      • 1...Qc7
        • 2.Qf4#
      • 1...Kd4!
    • 1.Rxf7+?
      • 1...Qc7
        • 2.Qf6#
      • 1...Kd4!
    • 1.Qf4+?
      • 1...Kxe6
        • 2.Sc3#
        • 2.Qd6#
      • 1...Qxf4!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Rd7#
      • 1...Kd4
        • 2.Rc4#
      • 1...Qxc3
        • 2.Qf4#
      • 1...Rxc7
        • 2.Qf6#
      • 1...Rd7
        • 2.Rxd7#
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(f);N_GUARD::QAB1(I),XR(f)
    • R(f);N_GUARD,P_SPINR(f),XR(J)::QAB1(I)
    • R(f);N_GUARD::QAB1(I)
    • R(f);N_GUARD,XP(K)::QAB1(I)
  • Tries
    • Try
      • S(G);
      • Threat
        • B(M)+R(J)
      • Vars
        • K(c);S_FLIGHT::R(J)
        • Q(a);N_GUARD,XQ(I)::B(M)+R(J)
        • Q(a);N_GUARD,P_SPINQ(a),XR(J)::QAB1(I)
        • R(f);N_GUARD,XS(G)::QAB1(I)
        • Q(a);::B(M)+R(J),XQ(a)
        • Q(a);N_GUARD::QAB1(I)
        • R(f);N_GUARD::QAB1(I),XR(f)
      • Refutation
        • B(g);
    • Try
      • R(J);CHECK,XQ(a)
      • Vars
        • R(f);P_SPINR(f)::QAB1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(J);CHECK
      • Vars
        • R(f);P_SPINR(f)::QAB1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(J);CHECK
      • Vars
        • R(f);P_SPINR(f)::QAB1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(J);CHECK
      • Vars
        • R(f);P_SPINR(f)::QAB1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(J);CHECK
      • Vars
        • R(f);P_SPINR(f)::QAB1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(J);CHECK
      • Vars
        • K(c);S_FLIGHT::R(J)+S(G)
      • Refutation
        • Q(a);P_SPINQ(a)
    • Try
      • R(J);CHECK
      • Vars
        • Q(a);P_SPINQ(a)::QAB1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(J);CHECK,XR(f)
      • Vars
        • Q(a);P_SPINQ(a)::QAB1(I)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Refutation
        • Q(a);XQ(I)
  • Actual
    • S(G);
    • Threat
      • B(M)+R(J)
    • Vars
      • K(c);S_FLIGHT::R1(J)
      • Q(a);N_GUARD,XS(G)::QAB1(I)
      • R(f);N_GUARD,P_SPINR(f),XR(J)::QAB1(I)
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