MESON Chess Problem Database

Problem Display
PID: 147930 (1Q6/3Bp3/K3N1nr/1NPk1ppR/1p5p/3nPPb1/2R2p1B/5b2 w - - 0 1)

Lies, Heinz

Prize, Dortmunder Zeitung, 1937

1Q6/3Bp3/K3N1nr/1NPk1ppR/1p5p/3nPPb1/2R2p1B/5b2

#2

11 + 12

14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Qb7#
      • 2.Qa8#
    • 1...Bd6
      • 2.Qb7#
      • 2.Qa8#
    • 1...Bc7
      • 2.Sbxc7#
      • 2.Sexc7#
      • 2.Qb7#
      • 2.Qa8#
    • 1...Sxc5+
      • 2.Rxc5#
    • 1...Sde5
      • 2.Sc7#
    • 1...Sge5
      • 2.Sc7#
    • 1...f4
      • 2.e4#
    • 1...g4
      • 2.e4#
  • Tries
    • 1.Sbc7+?
      • 1...Bxc7
        • 2.Sxc7#
        • 2.Qb7#
        • 2.Qa8#
      • 1...Ke5!
    • 1.Sec7+?
      • 1...Bxc7
        • 2.Sxc7#
        • 2.Qb7#
        • 2.Qa8#
      • 1...Ke5!
    • 1.Bc6+?
      • 1...Kxc6
        • 2.Qb7#
      • 1...Kxe6!
  • Keys
    • 1.Rxg5!
      • threat
        • 2.e4#
      • 1...Sxc5+
        • 2.Rxc5#
      • 1...Be5
        • 2.Qb7#
        • 2.Qa8#
      • 1...Sde5
        • 2.Sc7#
      • 1...Sge5
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • S(c);CHECK,OGATE,P_PINS(E),XP(F)::R1(A),XS(c)
    • S(c);P_PINS(E),SBLOCK,S_CUTB(d)::S(I)
    • S(j);P_PINS(I),SBLOCK,S_CUTB(d)::S(E)
    • P(h);N_GUARD,P_SPINP(i)::P(C)
    • P(i);P_SPINP(h)::P(C)
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • K(g);P-FLIGHT,P_SPINB(d)
    • Try
      • S(I);CHECK
      • Refutation
        • K(g);P-FLIGHT,P_SPINB(d)
    • Try
      • B(J);CHECK
      • Vars
        • K(g);S_FLIGHT,XB(J)::QAB1(K)
      • Refutation
        • K(g);S_FLIGHT,XS(I)
  • Actual
    • R(G);P_PINP(h),XP(i)
    • Threat
      • P(C)
    • Vars
      • S(c);CHECK,OGATE,P_PINS(E),XP(F)::R1(A),XS(c)
      • S(c);N_SPINP(h),P_PINS(E),SBLOCK,S_CUTB(d)::S(I)
      • S(j);N_SPINP(h),P_PINS(I),SBLOCK,S_CUTB(d)::S(E)
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Developed and maintained by Brian Stephenson.
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