MESON Chess Problem Database

Problem Display
PID: 72773 (8/5p2/3ppp1q/2p2p2/QN1Pkr2/1P6/K1N1r1PB/1BbRR1n1 w - - 0 1)

Fuhrer, Viktor

1st Prize, Denken und Raten, 1932

8/5p2/3ppp1q/2p2p2/QN1Pkr2/1P6/K1N1r1PB/1BbRR1n1

#2

11 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Sa1#
      • 2.Sa3#
      • 2.Sxe3#
  • Tries
    • 1.Rxe2+?
      • 1...Be3
        • 2.Sa1#
        • 2.Se1#
        • 2.Sa3#
        • 2.Sxe3#
        • 2.Rxe3#
      • 1...Sxe2!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sc3#
      • 1...Kxd5
        • 2.Qa8#
      • 1...cxd4
        • 2.Qxd4#
      • 1...exd5
        • 2.Qe8#
      • 1...Bd2
        • 2.Sce3#
      • 1...Qh3
        • 2.Sxf6#
      • 1...Rf3
        • 2.dxc5#
      • 1...Bb2
        • 2.Scb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK,N_SPINS(E),XR(c)
      • Refutation
        • S(b);XR(C)
  • Actual
    • S(J);
    • Threat
      • S(J)
    • Vars
      • K(d);N_SPINR(c),OGATEB,S_FLIGHT,XS(J)::QAB(I)
      • P(f);OGATE,P_SPINP(f),XP(K)::QAR1(I),XP(f)
      • P(i);OGATEB,SBLOCK,XS(J)::QAR(I)
      • B(a);N_PINS(E)::B(A)+S(E)
      • Q(k);N_GUARD::S(J),XP(j)
      • R(e);::QAR(I)+P(K),XP(f)
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