MESON Chess Problem Database

Problem Display
PID: 35830 (B2NrR1Q/8/4p3/3q1bB1/n1p1k3/3p2P1/4P3/Kn1R1N2 w - - 0 1)

Melnichenko, Viktor Oleksandrovich

Reitman, Mark

1st HM., Erokhin-60 JT, 1998

B2NrR1Q/8/4p3/3q1bB1/n1p1k3/3p2P1/4P3/Kn1R1N2

#2

10 + 9

3657 Izbrannie Shakhmatnie Zadachi Marka Reitmana 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6
      • 2.Bxc6#
    • 1...Qb7
      • 2.Bxb7#
    • 1...Bh3
      • 2.Rf4#
    • 1...Bg4
      • 2.Rf4#
    • 1...Bg6
      • 2.Rf4#
    • 1...Bh7
      • 2.Rf4#
    • 1...Sd2
      • 2.Sxd2#
    • 1...Sa3
      • 2.Sd2#
    • 1...Sbc3
      • 2.Sd2#
  • Tries
    • 1.Be3?
      • threat
        • 2.Qd4#
      • 1...e5
        • 2.Qh1#
      • 1...dxe2!
    • 1.Bf4?
      • threat
        • 2.Qe5#
      • 1...dxe2
        • 2.Qh1#
      • 1...e5!
    • 1.Rxd3?
      • threat
        • 2.Re3#
        • 2.Rd4#
        • 2.Qd4#
      • 1...Qxa8
        • 2.Rd4#
        • 2.Qd4#
      • 1...Qc6
        • 2.Bxc6#
        • 2.Rd4#
        • 2.Qd4#
      • 1...Qb7
        • 2.Bxb7#
        • 2.Rd4#
        • 2.Qd4#
      • 1...e5
        • 2.Bxd5#
        • 2.Qh1#
      • 1...cxd3!
    • 1.Qh4+?
      • 1...Ke5
        • 2.Sf7#
        • 2.Qf4#
      • 1...Bg4!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qh1#
      • 1...Qd4+
        • 2.Qxd4#
      • 1...Qe5+
        • 2.Qxe5#
      • 1...Qxc6
        • 2.Bxc6#
      • 1...Bh3
        • 2.Rf4#
      • 1...Bg4
        • 2.Rf4#
      • 1...Bh7
        • 2.Rf4#
      • 1...Sd2
        • 2.Sxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(f);OGATEB::B(G),XQ(f)
    • B(g);OGATE::R1(I)
    • S(a);N_GUARD::S(C),XS(a)
    • S(a);N_GUARD::S(C)
  • Tries
    • Try
      • B(F);
      • Threat
        • QAR1(J)
      • Vars
        • P(h);SBLOCK::QAB(J)
      • Refutation
        • P(b);XP(D)
    • Try
      • B(F);
      • Threat
        • QAR1(J)
      • Vars
        • P(b);XP(D)::QAB(J)
      • Refutation
        • P(h);
    • Try
      • R(B);XP(b)
      • Threat
        • DUALS(3)
      • Refutation
        • P(d);XR(B)
    • Try
      • Q(J);CHECK
      • Refutation
        • B(g);P_SPINB(g)
  • Actual
    • S(H);N_PINQ(f)
    • Threat
      • QAB(J)
    • Vars
      • Q(f);CHECK,N_GUARD::QAR1(J),XQ(f)
      • Q(f);OGATE,P_SPINQ(f),XS(H)::B(G),XQ(f)
      • B(g);OGATE::R1(I)
      • S(a);N_GUARD::S(C),XS(a)
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