MESON Chess Problem Database

Problem Display
PID: 84157 (7B/8/1p6/1Pp5/n1K5/RNRp4/Pk1p4/b2Q4 w - - 0 1)

Cheylan, Yves

Magyar Sakkelet, 1981

7B/8/1p6/1Pp5/n1K5/RNRp4/Pk1p4/b2Q4

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sxc5?
      • threat
        • 2.Sxd3#
        • 2.Sxa4#
        • 2.Rcb3#
        • 2.Qb3#
      • 1...Sxc5
        • 2.Rcb3#
        • 2.Rxd3#
      • 1...bxc5
        • 2.Rcb3#
        • 2.Qb3#
      • 1...Sxc3!
    • 1.Qxd2+?
      • 1...Kb1
        • 2.Rc1#
        • 2.Qc1#
      • 1...Kxa3!
  • Keys
    • 1.Sc1!
      • threat
        • 2.Sxd3#
        • 2.Rab3#
        • 2.Rcb3#
        • 2.Qb3#
      • 1...Kb1
        • 2.Sxd3#
      • 1...Sxc3
        • 2.Rb3#
      • 1...dxc1Q
        • 2.Qb3#
        • 2.Qxc1#
      • 1...dxc1S
        • 2.Rcb3#
        • 2.Qxc1#
      • 1...dxc1B
        • 2.Rcb3#
        • 2.Qb3#
        • 2.Qxc1#
      • 1...dxc1R
        • 2.Qb3#
        • 2.Qxc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);XP(f)
      • Threat
        • DUALS(4)
      • Refutation
        • S(e);P_SPINS(e),XR(E)
    • Try
      • Q(A);CHECK,XP(c)
      • Refutation
        • K(b);S_FLIGHT,XR(C)
  • Actual
    • S(D);
    • Threat
      • DUALS(4)
    • Vars
      • K(b);P-FLIGHT::QAR(A)+S(D),XP(d)
      • S(e);P_SPINS(e),XR(E)::R1(C)
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