MESON Chess Problem Database

Problem Display
PID: 97419 (8/1Qn5/2pbp3/8/b3k1P1/2R1pnB1/2P1N3/1B2N2K w - - 0 1)

Baxter, FL

Problem (Zagreb), 1953

8/1Qn5/2pbp3/8/b3k1P1/2R1pnB1/2P1N3/1B2N2K

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sb5
      • 2.Qxc6#
    • 1...Sd5
      • 2.Qh7#
  • Tries
    • 1.Rc4+?
      • 1...Sd4
        • 2.Sc3#
        • 2.Rxd4#
      • 1...Kd5!
    • 1.Qb4+?
      • 1...Kd5
        • 2.Qc4#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Bxb4!
  • Keys
    • 1.Rxc6!
      • threat
        • 2.Rc4#
      • 1...Kd5
        • 2.c4#
      • 1...Bxc6
        • 2.c4#
      • 1...Bxg3
        • 2.Rxe6#
      • 1...Bf4
        • 2.Rxe6#
      • 1...Bc5
        • 2.Rxe6#
      • 1...Sd4
        • 2.Sc3#
      • 1...Sd5
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • S(h);N_GUARD,S_CUTB(c)::QAB(I),XP(e)
    • S(h);N_SPINP(e),OGATE,SBLOCK::QAB(I)
  • Tries
    • Try
      • R(F);CHECK
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(I);CHECK,N_PINP(e)
      • Vars
        • K(d);S_FLIGHT::QAB1(I)
        • S(b);N_GUARD,P_SPINS(b)::QAR1(I),XS(b)
      • Refutation
        • B(f);XQ(I)
  • Actual
    • R(F);XP(e)
    • Threat
      • QAB(I)+R(F),DCHECK
    • Vars
      • K(d);S_FLIGHT::P(D)
      • B(c);N_GUARD,P_SPINB(c),XR(F)::B(A)+P(D)
      • B(f);OGATE,XB(G)::QAB(I)+R(F),DCHECK,XP(g)
      • B(f);OGATE::QAB(I)+R(F),DCHECK,XP(g)
      • S(b);SBLOCK::S(E)
      • S(h);OGATE,SBLOCK::QAB(I)
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Developed and maintained by Brian Stephenson.
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