MESON Chess Problem Database

Problem Display
PID: 219170 (7Q/2p2p1n/8/1B1r2b1/K1N1k1P1/4p1Pp/2N1P3/8 w - - 0 1)

Dychkoff, Viktor

Makarenko, Petr Leontevich

Freie Presse, 1998

7Q/2p2p1n/8/1B1r2b1/K1N1k1P1/4p1Pp/2N1P3/8

#2

8 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qe5#
    • 1...Rd2
      • 2.Qe5#
    • 1...Rd3
      • 2.Qe5#
    • 1...Rd4
      • 2.Qxd4#
      • 2.Qe5#
    • 1...Rxb5
      • 2.Qd4#
    • 1...Rc5
      • 2.Qd4#
    • 1...Re5
      • 2.Qxe5#
    • 1...Rf5
      • 2.Qd4#
    • 1...Rd6
      • 2.Qe5#
    • 1...Rd7
      • 2.Qe5#
    • 1...Rd8
      • 2.Qe5#
  • Tries
    • 1.Bc6?
      • threat
        • 2.Qd4#
        • 2.Qe5#
      • 1...Bf4
        • 2.Qd4#
      • 1...Bf6
        • 2.Qxh7#
      • 1...f6
        • 2.Qe8#
      • 1...Sf6!
    • 1.Qxh7+?
      • 1...Rf5
        • 2.Bc6#
        • 2.Qxf5#
      • 1...f5!
    • 1.Qe8+?
      • 1...Re5
        • 2.Bc6#
        • 2.Qxe5#
      • 1...Be7!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Qh1#
      • 1...Rd1
        • 2.Qe5#
      • 1...Rf5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • R(d);N_GUARD::QAR1(H)
    • R(d);N_GUARD,XB(G)::QAR1(H)
    • R(d);N_GUARD::QAR1(H),XR(d)
  • Tries
    • Try
      • B(G);P_PINR(d)
      • Threat
        • DUALS(2)
      • Vars
        • B(e);::QAR1(H)
        • B(e);S_CUTP(g)::QAB(H),XS(h)
        • P(g);S_CUTB(e)::QAR(H)
      • Refutation
        • S(h);
    • Try
      • Q(H);CHECK,XS(h)
      • Refutation
        • P(g);P_SPINP(g)
    • Try
      • Q(H);CHECK
      • Refutation
        • B(e);P_SPINB(e)
  • Actual
    • Q(H);
    • Threat
      • QAB(H)
    • Vars
      • R(d);N_GUARD::QAR1(H)
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