MESON Chess Problem Database

Problem Display
PID: 34964 (b3R3/K1N5/6n1/4Pp2/QP1pk3/2PNp2R/4B3/8 w - - 0 1)

Reitman, Mark

2nd HM., Olim, 1991

b3R3/K1N5/6n1/4Pp2/QP1pk3/2PNp2R/4B3/8

#2

10 + 6

3657 Izbrannie Shakhmatnie Zadachi Marka Reitmana 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Bc6
      • 2.Qxc6#
    • 1...Sf4
      • 2.Sc5#
    • 1...Sxe5
      • 2.Rxe5#
    • 1...dxc3
      • 2.b5#
  • Tries
    • 1.Rxe3+?
      • 1...dxe3
        • 2.b5#
      • 1...Kxe3!
    • 1.Rf3?
      • threat
        • 2.Sc5#
      • 1...dxc3
        • 2.b5#
      • 1...Se7
        • 2.Rf4#
      • 1...f4!
    • 1.Qa6?
      • threat
        • 2.Bf3#
      • 1...dxc3
        • 2.Qc4#
      • 1...f4
        • 2.Qxg6#
      • 1...Sh4!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qxd4#
      • 1...dxc3
        • 2.Bf3#
      • 1...Bd5
        • 2.Qxd5#
      • 1...f4
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(f);N_GUARD::QAB(E),XB(f)
    • S(e);SBLOCK::S(C)
    • S(e);OGATE,P_SPINS(e),XP(G)::R1(J),XS(e)
    • P(b);XP(B)::QAR(E)+P(F)
  • Tries
    • Try
      • R(D);CHECK,XP(a)
      • Vars
        • P(b);SBLOCK,XR(D)::QAR(E)+P(F)
      • Refutation
        • K(c);P-FLIGHT,XR(D)
    • Try
      • R(D);
      • Threat
        • S(C)
      • Vars
        • P(b);XP(B)::QAR(E)+P(F)
        • S(e);N_GUARD::R1(D)
      • Refutation
        • P(d);
    • Try
      • Q(E);
      • Threat
        • B(A)
      • Vars
        • P(b);OGATEB,XP(B)::QAR2(E)
        • P(d);OGATEB::QAB(E),XS(e)
      • Refutation
        • S(e);
  • Actual
    • Q(E);
    • Threat
      • QAR1(E),XP(b)
    • Vars
      • P(b);XP(B)::B(A)
      • B(f);N_GUARD::QAB1(E),XB(f)
      • P(d);SBLOCK::S(C)
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