MESON Chess Problem Database

Problem Display
PID: 35642 (Bb5K/3pR3/1B1k1P2/Np1P4/3r3p/3bp3/8/4Q3 w - - 0 1)

Reitman, Mark

4th HM., Stosic MT, 1995

Bb5K/3pR3/1B1k1P2/Np1P4/3r3p/3bp3/8/4Q3

#2

8 + 8

3657 Izbrannie Shakhmatnie Zadachi Marka Reitmana 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Qxb4#
    • 1...Bc4
      • 2.Qb4#
  • Tries
    • 1.Sc4+?
      • 1...Bxc4
        • 2.Qb4#
      • 1...bxc4
        • 2.Qb4#
      • 1...Rxc4!
    • 1.Qg3+?
      • 1...Rf4
        • 2.Qxf4#
      • 1...hxg3!
    • 1.Qh1?
      • threat
        • 2.Sb7#
      • 1...Rxd5
        • 2.Qxd5#
      • 1...Be4
        • 2.Qh2#
      • 1...Re4!
    • 1.Qxe3?
      • threat
        • 2.Qe5#
      • 1...Re4
        • 2.Qc5#
      • 1...Be4
        • 2.Qf4#
      • 1...Rxd5!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qc5#
      • 1...Rxd5
        • 2.Sb7#
      • 1...Rc4
        • 2.Qe5#
      • 1...Bc4
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(c);N_GUARD::QAB(A),XR(c)
    • B(a);S_CUTR(c)::QAB(A)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • B(a);XS(B)::QAB(A)
        • P(e);XS(B)::QAB(A)
      • Refutation
        • R(c);XS(B)
    • Try
      • Q(A);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAB(A),XR(c)
      • Refutation
        • P(d);XQ(A)
    • Try
      • Q(A);
      • Threat
        • S(B)
      • Vars
        • R(c);OGATE,XP(C)::QAR1(A),XR(c)
        • B(a);S_CUTR(c)::QAB(A)
      • Refutation
        • R(c);
    • Try
      • Q(A);XP(b)
      • Threat
        • QAB1(A)
      • Vars
        • R(c);OGATE::QAB1(A)
        • B(a);S_CUTR(c)::QAB(A)
      • Refutation
        • R(c);XP(C)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • R(c);SBLOCK,XP(C)::S(B)
      • R(c);OGATE::QAB1(A)
      • B(a);S_CUTR(c)::QAB(A)
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