MESON Chess Problem Database

Problem Display
PID: 103453 (3r4/8/B7/8/4b3/5N2/Q4K2/3k4 w - - 0 1)

Antipov, Viacheslav Pavlovich

Amirov MT, 1998

3r4/8/B7/8/4b3/5N2/Q4K2/3k4

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2+
      • 2.Qxd2#
    • 1...Rd3
      • 2.Qb1#
    • 1...Ra8
      • 2.Qd2#
    • 1...Rb8
      • 2.Qd2#
    • 1...Rc8
      • 2.Qd2#
    • 1...Re8
      • 2.Qd2#
    • 1...Rf8
      • 2.Qd2#
    • 1...Rg8
      • 2.Qd2#
    • 1...Rh8
      • 2.Qd2#
    • 1...Bb1
      • 2.Qxb1#
    • 1...Bd3
      • 2.Qd2#
    • 1...Bd5
      • 2.Qb1#
      • 2.Qd2#
    • 1...Bc6
      • 2.Qb1#
    • 1...Bb7
      • 2.Qb1#
    • 1...Ba8
      • 2.Qb1#
  • Tries
    • 1.Qa1+?
      • 1...Bb1
        • 2.Qxb1#
      • 1...Kc2!
    • 1.Qb2?
      • threat
        • 2.Be2#
      • 1...Rd2+
        • 2.Qxd2#
      • 1...Rd3
        • 2.Qb1#
      • 1...Bd3
        • 2.Qd2#
      • 1...Bxf3!
  • Keys
    • 1.Bd3!
      • threat
        • 2.Qb1#
        • 2.Qa1#
        • 2.Qc2#
        • 2.Qd2#
      • 1...Kc1
        • 2.Qb1#
        • 2.Qa1#
        • 2.Qc2#
        • 2.Qd2#
      • 1...Rxd3
        • 2.Qb1#
      • 1...Bxd3
        • 2.Qd2#
      • 1...Bxf3
        • 2.Qc2#
      • 1...Ra8
        • 2.Qb1#
        • 2.Qc2#
        • 2.Qd2#
      • 1...Rb8
        • 2.Qc2#
        • 2.Qd2#
      • 1...Rc8
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • R(c);CHECK,N_GUARD::QAR1(A),XR(c)
    • R(c);S_CUTB(b)::QAR2(A)
    • R(c);N_GUARD::QAR1(A)
    • R(c);N_GUARD,P_PINS(C)::QAR1(A)
    • B(b);N_GUARD::QAR2(A),XB(b)
    • B(b);S_CUTR(c)::QAR1(A)
    • B(b);N_GUARD::QAR2(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAR2(A),XB(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • B(D)
      • Vars
        • R(c);CHECK,N_GUARD::QAR1(A),XR(c)
        • R(c);S_CUTB(b)::QAR2(A)
        • B(b);S_CUTR(c)::QAR1(A)
      • Refutation
        • B(b);XS(C)
  • Actual
    • B(D);
    • Threat
      • DUALS(4)
    • Vars
      • R(c);XB(D)::QAR2(A)
      • B(b);XB(D)::QAR1(A)
      • B(b);XS(C)::QAB1(A)
      • R(c);::QAR1(A)
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