MESON Chess Problem Database

Problem Display
PID: 169925 (1b2b1B1/3r1rp1/pR1p4/3kp2R/3N1Q2/1P1NPK2/8/7n w - - 0 1)

van Dijk, Johannes

Elk Wat Wils Wedstrijd, 1945

1b2b1B1/3r1rp1/pR1p4/3kp2R/3N1Q2/1P1NPK2/8/7n

#2

9 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...a5
      • 2.Rb5#
  • Tries
    • 1.Bxf7+?
      • 1...Bxf7
        • 2.Qe4#
      • 1...Rxf7!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Qc4#
      • 1...e4+
        • 2.Qxe4#
      • 1...Ke6
        • 2.Qxe5#
      • 1...exf4
        • 2.Sxg7#
      • 1...Rc7
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(d);N_GUARD::R(H)
  • Tries
    • Try
      • B(I);CHECK,N_SPINQ(F),XR(g)
      • Vars
        • B(j);XB(I)::QAB1(F)
      • Refutation
        • R(f);P_PINQ(F),XB(I)
  • Actual
    • S(E);N_PINP(c),N_SPINQ(F)
    • Threat
      • QAB1(F)
    • Vars
      • P(c);CHECK::QAB1(F),XP(c)
      • K(b);P_SPINP(e),S_FLIGHT::QAR1(F),XP(c)
      • P(c);XQ(F)::R(G)+S(E),XP(h)
      • R(f);N_GUARD,S_CUTB(i)::R1(H),XP(e)
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