MESON Chess Problem Database

Problem Display
PID: 134551 (3b4/5p2/8/8/p4N2/5R2/r1QP1B1p/Rb2K2k w Q - 0 1)

Kopyl, Valery Volodimirovich

Mat Plus, 2008

3b4/5p2/8/8/p4N2/5R2/r1QP1B1p/Rb2K2k

#2

7 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Ke2?
      • threat
        • 2.Rxb1#
        • 2.Qxb1#
        • 2.Qd1#
        • 2.Qc1#
      • 1...Rxa1
        • 2.Qd1#
        • 2.Qc1#
      • 1...Rb2
        • 2.Qd1#
        • 2.Qc1#
      • 1...Rxc2!
    • 1.Bg3?
      • threat
        • 2.Rf1#
      • 1...Kg1
        • 2.Rf1#
      • 1...Bb6!
    • 1.Qe4?
      • threat
        • 2.Rd3#
      • 1...Bxe4
        • 2.0-0-0#
      • 1...Bd3
        • 2.Rxd3#
      • 1...f5!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Rd3#
      • 1...Rc2
        • 2.Rc3#
      • 1...Bd3
        • 2.Rxd3#
      • 1...Be4
        • 2.0-0-0#
      • 1...Bf5
        • 2.0-0-0#
      • 1...Bg6
        • 2.0-0-0#
      • 1...Bh7
        • 2.0-0-0#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT,P_PINB(a)
      • Threat
        • DUALS(4)
      • Refutation
        • R(c);P_PINP(D),XQ(C)
    • Try
      • B(E);
      • Threat
        • R(F)
      • Vars
        • K(b);P-FLIGHT::R1(F)
      • Refutation
        • B(g);
    • Try
      • Q(C);
      • Threat
        • QAB(C)+R(F)
      • Vars
        • B(a);XQ(C)::0-0-0
        • B(a);::QAB(C)+R(F),XB(a)
      • Refutation
        • P(f);
  • Actual
    • Q(C);
    • Threat
      • QAB(C)+R(F)
    • Vars
      • R(c);S_CUTB(a)::QAB(C)+R(F)
      • B(a);::QAB(C)+R(F),XB(a)
      • B(a);::0-0-0
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