MESON Chess Problem Database

Problem Display
PID: 143973 (8/7n/8/2p5/r3p3/b1Q1K2B/1pRP1N2/R1q1k3 w - - 0 1)

Palkoska, Emil

2nd Prize, Tidskrift for Schack, 1908

8/7n/8/2p5/r3p3/b1Q1K2B/1pRP1N2/R1q1k3

#2

7 + 8

119 Tidskrift for Schack 1909

SOLUTION

  • SOUND
  • Sets
    • 1...Qxa1
      • 2.d3#
      • 2.d4#
    • 1...Qb1
      • 2.Rxb1#
      • 2.d3#
      • 2.d4#
    • 1...Qd1
      • 2.Rxd1#
      • 2.d3#
      • 2.d4#
  • Tries
    • 1.Sd3+?
      • 1...Kd1
        • 2.Bg4#
      • 1...exd3!
    • 1.Rxb2?
      • threat
        • 2.Rxc1#
        • 2.Qxc1#
      • 1...Qxa1
        • 2.d3#
        • 2.d4#
      • 1...Qb1
        • 2.Raxb1#
        • 2.d3#
        • 2.d4#
      • 1...Qd1
        • 2.Rxd1#
        • 2.d3#
        • 2.d4#
      • 1...Rc4
        • 2.Rxc1#
      • 1...Bxb2!
  • Keys
    • 1.Kf4!
      • threat
        • 2.Qe3#
      • 1...e3+
        • 2.d4#
      • 1...Ke2
        • 2.Qe3#
      • 1...Kxf2
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(b);P-FLIGHT::B(G)
      • Refutation
        • P(f);XS(D)
    • Try
      • R(B);XP(c)
      • Threat
        • DUALS(2)
      • Vars
        • R(e);::R(A),XQ(a)
      • Refutation
        • B(d);XR(B)
  • Actual
    • K(F);S_FLIGHT
    • Threat
      • QAR2(E)
    • Vars
      • P(f);CHECK,N_PINP(C)::QAB(E)+P(C)
      • K(b);N_SPINQ(a),P-FLIGHT::QAR1(E)
      • K(b);N_SPINQ(a),S_FLIGHT,XS(D)::QAB1(E)
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