MESON Chess Problem Database

Problem Display
PID: 185902 (3N2Bn/2p1Bq2/2b5/KP1k3r/4R3/2PnPQ2/R7/1N1rb3 w - - 0 1)

Wrobel, Marian

Basler Nachrichten, 1947

(First published on Sat Sep 6 1947)

3N2Bn/2p1Bq2/2b5/KP1k3r/4R3/2PnPQ2/R7/1N1rb3

#2

11 + 9

15601 Albrecht-Leiss-Degener Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Bxe6#
    • 1...Rd2
      • 2.c4#
    • 1...Re5
      • 2.Rd4#
    • 1...Bf2
      • 2.c4#
    • 1...Bxc3+
      • 2.Sxc3#
    • 1...Bg3
      • 2.c4#
    • 1...Bh4
      • 2.c4#
    • 1...Sb4
      • 2.c4#
    • 1...Se5
      • 2.Rd4#
    • 1...Sg6
      • 2.Bxf7#
  • Tries
    • 1.Qxh5+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Kxe4!
  • Keys
    • 1.Raa4!
      • threat
        • 2.Rad4#
      • 1...Bxc3+
        • 2.Sxc3#
      • 1...Sc1
        • 2.Qxh5#
      • 1...Sb2
        • 2.Qxh5#
      • 1...Sf2
        • 2.Qxh5#
      • 1...Sb4
        • 2.c4#
      • 1...Sf4
        • 2.Re6#
      • 1...Sc5
        • 2.Qxh5#
      • 1...Se5
        • 2.Red4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 7
  • Sets
    • Q(h);OGATE::B(K),XQ(h)
    • R(a);N_PINP(C)::P(C)
    • R(e);SBLOCK::QAB(E)+R(F),DCHECK
    • B(b);N_PINP(C)::P(C)
    • B(b);CHECK,XP(C)::S(A),XB(b)
    • S(c);N_PINP(C)::P(C)
    • S(c);SBLOCK::QAB(E)+R(F),DCHECK
    • S(i);N_GUARD::B(K),XQ(h)
  • Tries
    • Try
      • Q(E);CHECK,XR(e)
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAR1(E),XS(c)
      • Refutation
        • K(d);N_SPINQ(h),S_FLIGHT,XR(F)
  • Actual
    • R(B);
    • Threat
      • R1(B)
    • Vars
      • B(b);CHECK,XP(C)::S(A),XB(b)
      • S(c);N_GUARD::QAR(E),XR(e)
      • S(c);N_PINP(C)::P(C)
      • S(c);::QAB(E)+R(F)
      • S(c);SBLOCK::QAB(E)+R(F),DCHECK
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