MESON Chess Problem Database

Problem Display
PID: 181759 (8/8/2K2p2/8/2N1k3/3Nr3/1Pp1p3/6Q1 w - - 0 1)

Skopal, A

Nedele, 1905

8/8/2K2p2/8/2N1k3/3Nr3/1Pp1p3/6Q1

#2

5 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Sd2#
    • 1...Rxd3
      • 2.Qg4#
    • 1...f5
      • 2.Qxe3#
  • Tries
    • 1.Qg5?
      • threat
        • 2.Qd5#
      • 1...Kxd3
        • 2.Qd5#
      • 1...Kf3
        • 2.Sd2#
      • 1...Kd4
        • 2.Qd5#
      • 1...Rxd3
        • 2.Qg4#
      • 1...f5
        • 2.Qxe3#
      • 1...fxg5!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qd5#
      • 1...Kxd3
        • 2.Qd5#
      • 1...Kf3
        • 2.Sd2#
      • 1...Kd4
        • 2.Qd5#
      • 1...Kf5
        • 2.Sd6#
      • 1...Rxd3
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(d);S_FLIGHT::S(D)
    • R(c);SBLOCK,XS(C)::QAR2(A)
    • P(e);SBLOCK::QAR1(A),XR(c)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(d);S_FLIGHT,XS(C)::QAR2(A)
        • K(d);S_FLIGHT::S(D)
        • K(d);P-FLIGHT::QAR1(A)
        • R(c);SBLOCK,XS(C)::QAR2(A)
        • P(e);SBLOCK::QAR1(A),XR(c)
      • Refutation
        • P(e);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(d);S_FLIGHT,XS(C)::QAR2(A)
      • K(d);S_FLIGHT::S(D)
      • K(d);P-FLIGHT::QAR1(A)
      • R(c);SBLOCK,XS(C)::QAR2(A)
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