MESON Chess Problem Database

Problem Display
PID: 34850 (K7/3Qp2B/7b/8/2p5/6N1/NpPpPBp1/1r1k1qR1 w - - 0 1)

Reitman, Mark

1st Prize, Chernomorski zudok, 1988

K7/3Qp2B/7b/8/2p5/6N1/NpPpPBp1/1r1k1qR1

#2

9 + 9

3657 Izbrannie Shakhmatnie Zadachi Marka Reitmana 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Rxe1#
    • 1...Rc1
      • 2.Sc3#
  • Tries
    • 1.Qa4?
      • threat
        • 2.c3#
      • 1...Rc1
        • 2.Sc3#
      • 1...c3!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sec3#
      • 1...Kxc2
        • 2.Qa4#
      • 1...Kxe2
        • 2.Qg4#
      • 1...Bg7
        • 2.Qxd2#
      • 1...c3
        • 2.Sexc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • Q(c);OGATE::R1(A),XQ(c)
    • R(a);SBLOCK::S(B)
  • Tries
    • Try
      • Q(G);N_PINP(e)
      • Threat
        • QAB(G)+P(C)
      • Vars
        • R(a);SBLOCK::S(B)
      • Refutation
        • P(g);
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(b);N_SPINP(e),N_SPINQ(c),OGATEB,S_FLIGHT,XP(C)::QAB(G)
      • K(b);N_SPINP(e),N_SPINQ(c),OGATEB,S_FLIGHT,XP(D)::QAB(G)
      • B(h);N_GUARD::QAR1(G),XP(e)
      • P(g);::S(F),XP(g)
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