MESON Chess Problem Database

Problem Display
PID: 146166 (1n2nB2/b7/4B1R1/2N1k3/1Q1p1p2/1p6/bP3Ppp/K3N2r w - - 0 1)

ten Cate, Pieter

Svenska Dagbladet, 1925

(First published on Sun Sep 13 1925)

1n2nB2/b7/4B1R1/2N1k3/1Q1p1p2/1p6/bP3Ppp/K3N2r

#2

9 + 11

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe1+
      • 2.Qxe1#
    • 1...Bb1
      • 2.Sf3#
    • 1...Sd6
      • 2.Bg7#
    • 1...Sf6
      • 2.Rg5#
    • 1...g1S
      • 2.Sed3#
    • 1...g1B
      • 2.Sed3#
      • 2.Sf3#
    • 1...d3
      • 2.Sxd3#
      • 2.Qc3#
      • 2.Qe4#
  • Tries
    • 1.Qxb8+?
      • 1...Sd6
        • 2.Bxd6#
        • 2.Bg7#
        • 2.Qxd6#
      • 1...Sc7
        • 2.Qxc7#
      • 1...Bxb8!
    • 1.f3?
      • threat
        • 2.Sd3#
      • 1...Rxe1+
        • 2.Qxe1#
      • 1...Bxc5
        • 2.Qxc5#
      • 1...Sf6
        • 2.Rg5#
      • 1...d3
        • 2.Sxd3#
        • 2.Qc3#
        • 2.Qe4#
      • 1...Bb1!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qe2#
      • 1...Rxe1+
        • 2.Qxe1#
      • 1...d3
        • 2.Qc3#
      • 1...g1S
        • 2.Sed3#
      • 1...Bb1
        • 2.Sf3#
      • 1...Sd6
        • 2.Bg7#
      • 1...Sf6
        • 2.Rg5#
      • 1...f3
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(a);CHECK,OGATE,XS(B)::QAR(E),XR(a)
    • B(b);N_PINS(B)::S(B)
    • S(k);N_GUARD,SBLOCK::B(I)
    • S(k);SBLOCK::R(H)
    • P(c);N_PINS(B)::S(B)
  • Tries
    • Try
      • Q(E);CHECK,XS(j)
      • Vars
        • S(k);N_GUARD,P_SPINS(k)::QAB(E),XS(k)
      • Refutation
        • B(i);XQ(E)
    • Try
      • P(D);
      • Threat
        • S(F)
      • Vars
        • R(a);CHECK,OGATE,XS(B)::QAR(E),XR(a)
        • B(i);OGATE,XS(F)::QAR2(E),XB(i)
        • S(k);SBLOCK::R(H)
      • Refutation
        • B(b);N_PINS(B)
  • Actual
    • Q(E);
    • Threat
      • QAR(E)
    • Vars
      • R(a);CHECK,OGATE,XS(B)::QAR(E),XR(a)
      • P(f);OGATEB::QAB(E)
      • P(c);N_PINS(B)::S(B)
      • B(b);N_PINS(B)::S(B)
      • S(k);N_GUARD,SBLOCK::B(I)
      • S(k);SBLOCK::R(H)
      • P(g);OGATE::QAR2(E)
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