MESON Chess Problem Database

Problem Display
PID: 190218 (8/2N3K1/Q7/3n4/1n1k1p2/1P3P2/3P4/2R5 w - - 0 1)

Krespay, Agoston

Magyar Sakkvilag, 1913

8/2N3K1/Q7/3n4/1n1k1p2/1P3P2/3P4/2R5

#2

7 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Rc4+?
      • 1...Ke5
        • 2.Qe6#
      • 1...Kd3!
    • 1.Qa1+?
      • 1...Sc3
        • 2.Qxc3#
      • 1...Kd3!
    • 1.Qd6?
      • 1...Sa2
        • 2.Qxd5#
      • 1...Sc2
        • 2.Qxd5#
      • 1...Sd3
        • 2.Sb5#
        • 2.Se6#
        • 2.Rc4#
        • 2.Qxd5#
      • 1...Sa6
        • 2.Qxd5#
      • 1...Sc6
        • 2.Qxd5#
      • 1...Kd3!
  • Keys
    • 1.Rc5!
      • 1...Kxc5
        • 2.Se6#
      • 1...Ke5
        • 2.Qf6#
      • 1...Sxa6
        • 2.Rxd5#
      • 1...Sxc7
        • 2.Qc4#
      • 1...Sa2
        • 2.Rxd5#
      • 1...Sc2
        • 2.Rxd5#
      • 1...Sd3
        • 2.Rxd5#
      • 1...Sc6
        • 2.Rxd5#
      • 1...Sc3
        • 2.Se6#
        • 2.Qc4#
      • 1...Se3
        • 2.Se6#
      • 1...Sb6
        • 2.Se6#
      • 1...Sf6
        • 2.Se6#
        • 2.Qc4#
      • 1...Se7
        • 2.Se6#
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(E)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::QAB1(E),XS(d)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(E);P_PINS(d)
      • Vars
        • S(a);N_GUARD::QAR1(E),XS(d)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(b);S_FLIGHT,XR(A)::S(F)
      • K(b);P_SPINS(d),S_FLIGHT::QAB1(E)
      • S(a);N_GUARD,XQ(E)::R1(A),XS(d)
      • S(d);XS(F)::QAR1(E)
      • S(a);N_GUARD::R1(A),XS(d)
      • S(d);::S(F)
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