MESON Chess Problem Database

Problem Display
PID: 147143 (2k4r/KN1bR3/N3n3/1p6/2r3B1/5Qpq/8/2R5 w - - 0 1)

Fleck, Ferenc

Dzien Polski, 1932

(First published on Tue Jun 14 1932)

2k4r/KN1bR3/N3n3/1p6/2r3B1/5Qpq/8/2R5

#2

7 + 8

14868 Pirnie Collection 2013
5454 Near Snap 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rd8
      • 2.Sd6#
    • 1...Bc6
      • 2.Rc7#
    • 1...Sc5
      • 2.Qc6#
    • 1...Sd8
      • 2.Sd6#
    • 1...Sf8
      • 2.Re8#
  • Tries
    • 1.Rxc4+?
      • 1...Bc6
        • 2.Rxc6#
        • 2.Rc7#
        • 2.Qxc6#
      • 1...Sc5
        • 2.Rxc5#
        • 2.Qc6#
      • 1...Sc7
        • 2.Rxc7#
      • 1...bxc4!
    • 1.Qc6+?
      • 1...Bxc6
        • 2.Rc7#
      • 1...Sc7
        • 2.Qxd7#
      • 1...Rxc6!
  • Keys
    • 1.Qd5!
      • threat
        • 2.Qxd7#
      • 1...Rd8
        • 2.Sd6#
      • 1...Bc6
        • 2.Rc7#
      • 1...Be8
        • 2.Qd8#
      • 1...Sc5
        • 2.Qc6#
      • 1...Sf8
        • 2.Re8#

Anticipated by 267625(1918)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(h);SBLOCK::S(F)
    • B(f);N_SPINR(c),OGATE,P_SPINS(e)::R1(G)
    • S(e);N_GUARD,N_SPINR(c),P_SPINB(f),S_CUTR(c)::QAR2(B)
    • S(e);P_SPINB(f),SBLOCK::S(F)
    • S(e);N_GUARD,P_SPINB(f),S_CUTR(h)::R(G)
  • Tries
    • Try
      • R(A);CHECK,XR(c)
      • Vars
        • S(e);N_GUARD,P_SPINB(f),P_SPINS(e)::R1(A),XS(e)
      • Refutation
        • P(d);XR(A)
    • Try
      • Q(B);CHECK,N_PINR(c)
      • Vars
        • B(f);OGATE,P_SPINS(e),XQ(B)::R1(G)
        • S(e);P_SPINB(f),P_SPINS(e)::QAB1(B),XB(f)
      • Refutation
        • R(c);P_SPINR(c),XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B),XB(f)
    • Vars
      • R(h);SBLOCK::S(F)
      • B(f);N_SPINR(c),OGATE,P_SPINS(e)::R1(G)
      • B(f);OGATE,P_SPINS(e)::QAR1(B)
      • S(e);N_GUARD,N_SPINR(c),P_SPINB(f),S_CUTR(c)::QAR2(B)
      • S(e);N_GUARD,P_SPINB(f),S_CUTR(h)::R(G)
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