MESON Chess Problem Database

Problem Display
PID: 196885 (2K5/8/8/b1R5/3Nkp2/r6n/2N5/n4Q2 w - - 0 1)

Rosenblatt, Paul

Deutsches Wochenschach, 1919

2K5/8/8/b1R5/3Nkp2/r6n/2N5/n4Q2

#2

5 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Qe2#
      • 2.Qf3#
    • 1...Rf3
      • 2.Qxf3#
    • 1...Ra4
      • 2.Qe2#
      • 2.Qf3#
    • 1...Bc3
      • 2.Qe2#
      • 2.Qf3#
    • 1...Sb3
      • 2.Qe2#
      • 2.Qf3#
  • Tries
    • 1.Qg2+?
      • 1...Kd3
        • 2.Qe2#
      • 1...Rf3
        • 2.Qxf3#
        • 2.Qg6#
      • 1...f3!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Re5#
      • 1...Rxf3
        • 2.Qc4#
      • 1...Sf2
        • 2.Sg5#
      • 1...Rc3
        • 2.Sd2#
      • 1...Bc3
        • 2.Qe2#
      • 1...Bc7
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD::QAB1(A),XR(b)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB1(A)
      • Refutation
        • P(e);P_SPINP(e)
  • Actual
    • S(C);
    • Threat
      • R1(D)
    • Vars
      • R(b);SBLOCK,XS(C)::QAR2(A)
      • S(c);N_GUARD::S(C)
      • R(b);P_PINR(D),S_CUTB(f)::S(C)
      • B(f);S_CUTR(b)::QAR2(A)
      • B(f);N_GUARD::S(C)
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