MESON Chess Problem Database

Problem Display
PID: 198316 (1rn5/4p3/b1p1P3/2rk4/2pNRB2/6N1/2Q3K1/b7 w - - 0 1)

van Dijk, Johannes

De Maasbode, 1920

1rn5/4p3/b1p1P3/2rk4/2pNRB2/6N1/2Q3K1/b7

#2

7 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Sgf5?
      • threat
        • 2.Se3#
        • 2.Re5#
      • 1...Ra5
        • 2.Re5#
      • 1...Rcb5
        • 2.Re5#
      • 1...c3
        • 2.Se3#
      • 1...Rb3
        • 2.Re5#
      • 1...Bxd4!
    • 1.Re5+?
      • 1...Kxd4
        • 2.Se2#
        • 2.Sf5#
        • 2.Qd2#
      • 1...Kd6!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qh5#
      • 1...Rb2+
        • 2.Sc2#
      • 1...Bxd4
        • 2.Qxd4#
      • 1...c3
        • 2.Sb5#
      • 1...Sd6
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::R1(E)
        • P(b);::S(C)
        • R(h);::R1(E)
      • Refutation
        • B(a);XS(D)
    • Try
      • R(E);CHECK
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR(A)
    • Vars
      • R(h);CHECK,S_CUTB(a)::QAR(A)+S(D)
      • B(a);OGATE,P_SPINB(a),XS(D)::QAR1(A),XB(a)
      • P(b);S_CUTB(a)::QAR(A)+S(D)
      • S(i);SBLOCK::R1(E)
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