MESON Chess Problem Database

Problem Display
PID: 92057 (2Q5/2p5/p6B/3ppP2/4k3/6K1/1NR1pR2/8 w - - 0 1)

Visserman, Eeltje

Schach-Echo, 1975

2Q5/2p5/p6B/3ppP2/4k3/6K1/1NR1pR2/8

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rf4+?
      • 1...Ke3
        • 2.Ra4#
        • 2.Rb4#
        • 2.Rfc4#
        • 2.Rg4#
        • 2.Rh4#
      • 1...exf4+!
    • 1.Qxa6?
      • threat
        • 2.Qd3#
      • 1...Kd4
        • 2.Qd3#
        • 2.Qa4#
      • 1...d4
        • 2.Qc6#
      • 1...e1S!
    • 1.Qb7?
      • threat
        • 2.Rc4#
      • 1...Kd4
        • 2.Qb4#
      • 1...c6!
    • 1.Qg8?
      • threat
        • 2.Qg4#
      • 1...d4
        • 2.Rcxe2#
      • 1...Kd4!
  • Keys
    • 1.Qd8!
      • threat
        • 2.Qh4#
      • 1...Kd4
        • 2.Rc4#
      • 1...d4
        • 2.Rcxe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • P(d);CHECK,XR(C)
    • Try
      • Q(G);XP(e)
      • Threat
        • QAB1(G)
      • Vars
        • P(c);OGATEB,SBLOCK::QAB(G)
      • Refutation
        • P(a);
    • Try
      • Q(G);P_PINP(c)
      • Threat
        • R(B)
      • Vars
        • K(b);N_SPINP(c),P-FLIGHT::QAR2(G)
      • Refutation
        • P(f);N_SPINP(c)
    • Try
      • Q(G);
      • Threat
        • QAR2(G)
      • Vars
        • P(c);SBLOCK::R(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(G);
    • Threat
      • QAR(G)
    • Vars
      • K(b);P-FLIGHT,P_SPINP(c)::R1(B)
      • P(c);::R(B),XP(a)
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