MESON Chess Problem Database

Problem Display
PID: 176415 (8/2K1N3/3P1p2/2pB1p2/3kp3/4R1P1/1P1P4/3QR3 w - - 0 1)

Erokhin, Vladimir Alekseevich

4th HM., Schach-Echo, 1983-03

8/2K1N3/3P1p2/2pB1p2/3kp3/4R1P1/1P1P4/3QR3

#2

10 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Ba2?
      • threat
        • 2.Sc6#
      • 1...Ke5
        • 2.Sc6#
      • 1...c4!
    • 1.Bb3?
      • threat
        • 2.Sc6#
      • 1...Ke5
        • 2.Sc6#
      • 1...c4!
    • 1.Bf7?
      • threat
        • 2.Sc6#
      • 1...Ke5
        • 2.Sc6#
      • 1...c4!
    • 1.Bg8?
      • threat
        • 2.Sc6#
      • 1...Ke5
        • 2.Sc6#
      • 1...c4!
    • 1.Rxe4+?
      • 1...Kd3
        • 2.Bc4#
        • 2.R1e3#
      • 1...fxe4!
    • 1.Qc2?
      • threat
        • 2.Qc3#
      • 1...Ke5
        • 2.Qc3#
      • 1...c4!
    • 1.Qb3?
      • threat
        • 2.Sc6#
        • 2.Qc3#
      • 1...Ke5
        • 2.Sc6#
        • 2.Qc3#
      • 1...c4!
    • 1.Qh5?
      • 1...Ke5
        • 2.Rxe4#
      • 1...f4
        • 2.Sc6#
      • 1...c4!
    • 1.Qa1?
      • threat
        • 2.b3#
        • 2.b4#
      • 1...Ke5
        • 2.b3#
        • 2.b4#
      • 1...c4!
    • 1.Qc1?
      • threat
        • 2.Qc3#
      • 1...Ke5
        • 2.Qc3#
      • 1...c4!
    • 1.b3?
      • threat
        • 2.Qa1#
      • 1...Ke5
        • 2.Qa1#
      • 1...c4!
  • Keys
    • 1.Bc4!
      • 1...Kxc4
        • 2.Qa4#
      • 1...Ke5
        • 2.Sc6#
      • 1...f4
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(G);
      • Threat
        • S(J)
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::S(J)
      • Refutation
        • P(c);
    • Try
      • B(G);
      • Threat
        • S(J)
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::S(J)
      • Refutation
        • P(c);
    • Try
      • B(G);
      • Threat
        • S(J)
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::S(J)
      • Refutation
        • P(c);
    • Try
      • B(G);
      • Threat
        • S(J)
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::S(J)
      • Refutation
        • P(c);
    • Try
      • R(E);CHECK,XP(b)
      • Refutation
        • P(d);XR(E)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::QAB(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::R1(E),XP(b)
        • P(d);::S(J)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::QAB(A)
      • Refutation
        • P(c);
    • Try
      • P(C);
      • Threat
        • QAB(A)
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::QAB(A)
      • Refutation
        • P(c);
  • Actual
    • B(G);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XB(G)::QAR2(A)
      • K(a);P_SPINP(b),S_FLIGHT::S(J)
      • P(d);N_GUARD::R1(E),XP(b)
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