MESON Chess Problem Database

Problem Display
PID: 203427 (3R4/q1p1prb1/Bp3p2/1r1N3K/bP4Q1/n2kP3/1P2R3/N7 w - - 0 1)

ten Cate, Pieter

Western Morning News, 1924

(First published on Sat May 10 1924)

3R4/q1p1prb1/Bp3p2/1r1N3K/bP4Q1/n2kP3/1P2R3/N7

#2

10 + 11

6490 yacpdb 2020
15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Sf6#
    • 1...c5
      • 2.Sc7#
    • 1...e5
      • 2.Se7#
  • Tries
    • 1.Sb3?
      • threat
        • 2.Sc1#
        • 2.Rd2#
      • 1...Sb1
        • 2.Sc1#
      • 1...Sc4
        • 2.Sc1#
      • 1...Bxb3!
    • 1.Qf5+?
      • 1...Kc4
        • 2.Qe4#
      • 1...Kxe2!
  • Keys
    • 1.Re1!
      • threat
        • 2.Qd4#
      • 1...Kd2
        • 2.Qe2#
      • 1...Bd1
        • 2.Rxd1#
      • 1...Sc2
        • 2.Rd1#
      • 1...f5
        • 2.Sf6#
      • 1...c5
        • 2.Sc7#
      • 1...e5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(f);N_PINS(G)::R(J)+S(G)
    • P(h);N_PINS(G)::R(J)+S(G)
    • P(i);N_PINS(G)::R(J)+S(G)
  • Tries
    • Try
      • S(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::S(A)
        • S(a);N_SPINR(d)::S(A)
      • Refutation
        • B(c);XS(A)
    • Try
      • Q(F);CHECK,N_SPINS(G)
      • Vars
        • K(b);S_FLIGHT::QAR2(F)
      • Refutation
        • K(b);S_FLIGHT,XR(C)
  • Actual
    • R(C);
    • Threat
      • QAR1(F)
    • Vars
      • K(b);N_SPINR(d),P-FLIGHT::QAR1(F)
      • B(c);N_GUARD,P_PINQ(F)::R(C),XB(c)
      • S(a);S_CUTB(c)::R(C)
      • P(f);N_PINS(G)::R(J)+S(G)
      • P(h);N_PINS(G)::R(J)+S(G)
      • P(i);N_PINS(G)::R(J)+S(G)
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