MESON Chess Problem Database

Problem Display
PID: 245731 (4rrbq/1N4b1/1pQP3n/3P1P2/2p1k2n/5R1p/2N1K1BB/8 w - - 0 1)

Wrobel, Marian

Brisbane Courier, 1927

4rrbq/1N4b1/1pQP3n/3P1P2/2p1k2n/5R1p/2N1K1BB/8

#2

10 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Rf4#
      • 2.Qxc4#
    • 1...Re6
      • 2.dxe6#
    • 1...Rxf5
      • 2.Re3#
    • 1...Rf6
      • 2.Qxc4#
    • 1...Be5
      • 2.Rf4#
    • 1...Be6
      • 2.dxe6#
    • 1...S4xf5
      • 2.Re3#
      • 2.Rxh3#
    • 1...S6xf5
      • 2.Re3#
    • 1...b5
      • 2.Sc5#
  • Keys
    • 1.d7!
      • threat
        • 2.Sd6#
      • 1...S4xf5
        • 2.Re3#
        • 2.Rxh3#
      • 1...S6xf5
        • 2.Re3#
      • 1...Re6
        • 2.dxe6#
        • 2.d6#
      • 1...Rf6
        • 2.Qxc4#
      • 1...Be5
        • 2.Rf4#
      • 1...Sf7
        • 2.d6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(h);OGATE::QAB(H)+P(F),XR(h)
    • R(i);SBLOCK,XP(G)::B(C)+R(E),DCHECK
    • R(i);S_CUTB(g)::QAR2(H),XP(b)
    • B(g);SBLOCK::B(C)+R(E),DCHECK
    • B(j);OGATE::QAB(H)+P(F),XB(j)
    • S(f);SBLOCK,XP(G)::B(C)+R(E),DCHECK
    • P(e);N_GUARD::S(J)
  • Actual
    • P(I);
    • Threat
      • S(J)
    • Vars
      • S(f);SBLOCK,XP(G)::B(C)+R(E),DCHECK
      • R(i);S_CUTB(g)::QAR2(H),XP(b)
      • B(g);SBLOCK::B(C)+R(E),DCHECK
      • S(f);S_CUTB(j)::QAB(H)+P(F)
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