MESON Chess Problem Database

Problem Display
PID: 140184 (8/K2p4/1Q1RP1r1/1B1NpP2/R1N1k2P/2P3p1/3Bprb1/5qb1 w - - 0 1)

Drese, Gerardus Hendrikus

Limburgs Dagblad, 1935

8/K2p4/1Q1RP1r1/1B1NpP2/R1N1k2P/2P3p1/3Bprb1/5qb1

#2

12 + 10

102 Probleemblad 1975

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Sxe5#
    • 1...Kxf5
      • 2.Sce3#
    • 1...Rf3
      • 2.Sce3#
    • 1...Bf3
      • 2.Sce3#
  • Tries
    • 1.Sb2+?
      • 1...Kf3
        • 2.Qe3#
      • 1...Kxf5!
    • 1.Sa3+?
      • 1...Kf3
        • 2.Qe3#
      • 1...Kxf5!
    • 1.Sa5+?
      • 1...Kf3
        • 2.Qe3#
      • 1...Kxf5!
    • 1.Qd4+?
      • 1...Kf3
        • 2.Sxe5#
      • 1...Kxf5
        • 2.Sce3#
      • 1...exd4!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Se7#
      • 1...Rf3+
        • 2.Sce3#
      • 1...Rf4+
        • 2.Sde3#
      • 1...Rxf5+
        • 2.Sdb6#
      • 1...Kd3
        • 2.Sb4#
      • 1...Kf3
        • 2.Sxe5#
      • 1...Kxf5
        • 2.Sce3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(g);S_FLIGHT::S(D),XP(h)
    • K(g);S_FLIGHT,XP(H)::S(D)
    • R(d);P_PINQ(I),SBLOCK::R(C)+S(D)
    • B(e);SBLOCK::R(C)+S(D)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(g);S_FLIGHT::QAR1(I)
      • Refutation
        • K(g);S_FLIGHT,XP(H)
    • Try
      • S(D);CHECK
      • Vars
        • K(g);S_FLIGHT::QAR1(I)
      • Refutation
        • K(g);S_FLIGHT,XP(H)
    • Try
      • S(D);CHECK
      • Vars
        • K(g);S_FLIGHT::QAR1(I)
      • Refutation
        • K(g);S_FLIGHT,XP(H)
    • Try
      • Q(I);CHECK
      • Vars
        • K(g);S_FLIGHT::S(D),XP(h)
        • K(g);S_FLIGHT,XP(H)::S(D)
      • Refutation
        • P(h);XQ(I)
  • Actual
    • Q(I);
    • Threat
      • QAB(I)+S(G)
    • Vars
      • R(d);CHECK,SBLOCK::R(C)+S(D)
      • R(d);CHECK,SBLOCK::QAB(I)+S(G)
      • R(d);CHECK,SBLOCK,XP(H)::QAB(I)+S(G)
      • K(g);S_FLIGHT::R(J)+S(G),DCHECK
      • K(g);S_FLIGHT::S(D),XP(h)
      • K(g);S_FLIGHT,XP(H)::S(D)
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