MESON Chess Problem Database

Problem Display
PID: 90089 (3KN1b1/3pp2R/1p2k3/8/2n2Rnb/4pQ2/1Br3r1/8 w - - 0 1)

Schneider, Michael

Die Schwalbe, 1943

3KN1b1/3pp2R/1p2k3/8/2n2Rnb/4pQ2/1Br3r1/8

#2

6 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Rxe7#
    • 1...Bf2
      • 2.Rxe7#
    • 1...Bg3
      • 2.Rxe7#
    • 1...Sd6
      • 2.Sg7#
    • 1...Sf6
      • 2.Rxe7#
    • 1...d6
      • 2.Sc7#
      • 2.Sg7#
  • Tries
    • 1.Rf6+?
      • 1...Sxf6
        • 2.Rxe7#
      • 1...exf6
        • 2.Re7#
      • 1...Bxf6!
    • 1.Qc6+?
      • 1...Sd6
        • 2.Sc7#
        • 2.Sg7#
      • 1...d6
        • 2.Sc7#
        • 2.Sg7#
      • 1...dxc6!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Qd5#
      • 1...Ke5
        • 2.Qe4#
      • 1...Sce5
        • 2.Sg7#
      • 1...Sge5
        • 2.Sc7#
      • 1...Sf6
        • 2.Rxe7#
      • 1...d5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • B(f);N_GUARD::R1(D),XP(j)
    • S(d);SBLOCK::S(F)
    • S(e);S_CUTB(f)::R1(D),XP(j)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • S(e);XR(C)::R1(D),XP(j)
        • P(j);XR(C)::R1(D)
      • Refutation
        • B(f);XR(C)
    • Try
      • Q(B);CHECK
      • Refutation
        • P(i);XQ(B)
  • Actual
    • R(C);
    • Threat
      • QAB1(B)
    • Vars
      • K(h);P-FLIGHT::QAR1(B)
      • S(d);SBLOCK::S(F)
      • S(e);SBLOCK::S(F)
      • S(e);S_CUTB(f)::R1(D),XP(j)
      • P(i);::QAB1(B),XP(i)
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