MESON Chess Problem Database

Problem Display
PID: 55933 (8/5prp/2PQ3B/K3Pbr1/1p1P2B1/pR1Nk1NR/3p1b1n/4q3 w - - 0 1)

Rietveld, Johannes Jacob

2nd Prize, Brisbane Courier, 1914-1915

8/5prp/2PQ3B/K3Pbr1/1p1P2B1/pR1Nk1NR/3p1b1n/4q3

#2

11 + 12

15 British Chess Magazine 1915
6388 ChessMoves 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Sf1#
      • 2.Sf5#
    • 1...Bg6
      • 2.Bxg5#
  • Tries
    • 1.Sxe1+?
      • 1...Bd3
        • 2.Sg2#
      • 1...Kf4!
    • 1.Sf4+?
      • 1...Bd3
        • 2.Sg2#
      • 1...Kxf4!
  • Keys
    • 1.e6!
      • threat
        • 2.Qf4#
      • 1...Bxd3+
        • 2.Qe5#
      • 1...Be4+
        • 2.Sf5#
      • 1...Bxg4+
        • 2.Sc5#
      • 1...Bxe6+
        • 2.Qe5#
      • 1...Bg6+
        • 2.Bxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(h);P_PINP(H),S_CUTR(k)::B(K),XR(i)
  • Tries
    • Try
      • S(B);CHECK,XQ(a)
      • Vars
        • B(h);P_PINP(H),P_SPINB(h)::S(B)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • S(B);CHECK,N_PINR(i)
      • Vars
        • B(h);P_PINP(H),P_SPINB(h)::S(B)
      • Refutation
        • K(f);P_SPINR(i),S_FLIGHT,XS(B)
  • Actual
    • P(H);
    • Threat
      • QAB1(J)
    • Vars
      • B(h);CHECK,N_GUARD,P_SPINB(h),XS(B)::QAR2(J)
      • B(h);CHECK,SBLOCK::R(D)+S(C),DCHECK
      • B(h);CHECK,N_GUARD,XB(F)::R(A)+S(B)
      • B(h);CHECK,N_GUARD,XP(H)::QAR2(J)
      • B(h);CHECK,S_CUTR(k)::B(K),XR(i)
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