MESON Chess Problem Database

Problem Display
PID: 250256 (3R4/4p1q1/5pp1/K2N2r1/B7/7R/N2knQp1/8 w - - 0 1)

Goldschmidt, Ervin

Magyar Sakkvilag, 1927

3R4/4p1q1/5pp1/K2N2r1/B7/7R/N2knQp1/8

#2

7 + 8

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg3
      • 2.Se3#
    • 1...Rg4
      • 2.Sf4#
    • 1...Rxd5+
      • 2.Rxd5#
    • 1...f5
      • 2.Sf6#
    • 1...e5
      • 2.Se7#
  • Tries
    • 1.Re3?
      • threat
        • 2.Qxe2#
      • 1...Rxd5+
        • 2.Rxd5#
      • 1...g1S!
  • Keys
    • 1.Rh4!
      • threat
        • 2.Rd4#
      • 1...Rxd5+
        • 2.Rxd5#
      • 1...Kd3
        • 2.Qe3#
      • 1...Rg3
        • 2.Se3#
      • 1...Rg4
        • 2.Sf4#
      • 1...f5
        • 2.Sf6#
      • 1...e5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(d);N_PINS(F)::R(G)+S(F)
    • R(d);CHECK,OGATE,P_SPINR(d),XS(F)::R(G),XR(d)
    • P(e);N_PINS(F)::R(G)+S(F)
    • P(g);N_PINS(F)::R(G)+S(F)
  • Tries
    • Try
      • R(C);
      • Threat
        • QAR1(B),XS(b)
      • Vars
        • R(d);CHECK,OGATE,P_SPINR(d),XS(F)::R(G),XR(d)
      • Refutation
        • P(c);
  • Actual
    • R(C);
    • Threat
      • R(C)
    • Vars
      • R(d);CHECK,OGATE,P_SPINR(d),XS(F)::R(G),XR(d)
      • K(a);N_GUARD,N_SPINS(b),P-FLIGHT::QAR1(B)
      • R(d);N_PINS(F)::R(G)+S(F)
      • P(e);N_PINS(F)::R(G)+S(F)
      • P(g);N_PINS(F)::R(G)+S(F)
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