MESON Chess Problem Database

Problem Display
PID: 243965 (8/5p2/1KP2p2/4k1pP/6p1/PR2N1P1/QNR3P1/1B6 w - - 0 1)

Gvozdjak, Peter

Pravda, 1986

8/5p2/1KP2p2/4k1pP/6p1/PR2N1P1/QNR3P1/1B6

#2

12 + 5

5454 Near Snap 2021
15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sbc4+?
      • 1...Kd4
        • 2.Rd2#
      • 1...Ke4
        • 2.Rd2#
      • 1...Ke6!
    • 1.Rd3?
      • threat
        • 2.Qd5#
      • 1...Ke4
        • 2.Qd5#
      • 1...f5!
  • Keys
    • 1.Sf5!
      • 1...Ke4
        • 2.Rc5#
      • 1...Kd5
        • 2.Re3#
      • 1...Kxf5
        • 2.Re2#
      • 1...Ke6
        • 2.Rb5#

Anticipated by 187975(1910), 23456(1963), 93816(1968)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(b);S_FLIGHT::R(D)
        • K(b);P-FLIGHT::B(A)+R(D)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(G);
      • Threat
        • QAR1(B)
      • Vars
        • K(b);P-FLIGHT::QAB1(B)
      • Refutation
        • P(d);
  • Actual
    • S(H);
    • Vars
      • K(b);P-FLIGHT::B(A)+R(D)
      • K(b);P-FLIGHT::QAB(B)+R(G)
      • K(b);P-FLIGHT,XS(H)::B(A)+R(D)
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