MESON Chess Problem Database

Problem Display
PID: 229106 (5BBn/5rp1/5bp1/p1p1P1P1/PNk1K2R/3pPQ2/PP2pr2/8 w - - 0 1)

Gruber, Sandor

Magyar Sakkvilag, 1926

5BBn/5rp1/5bp1/p1p1P1P1/PNk1K2R/3pPQ2/PP2pr2/8

#2

12 + 11

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxb4
      • 2.Kxd3#
      • 2.Kd5#
    • 1...Rxf3
      • 2.Kxf3#
    • 1...Bxe5
      • 2.Kxe5#
  • Tries
    • 1.Bxf7+?
      • 1...Kxb4
        • 2.Kxd3#
        • 2.Kd5#
      • 1...Sxf7!
  • Keys
    • 1.Kf4!
      • threat
        • 2.Kg3#
      • 1...Rxf3+
        • 2.Kxf3#
      • 1...Bxe5+
        • 2.Kxe5#
      • 1...Bxg5+
        • 2.Kxg5#
      • 1...Kxb4
        • 2.Kg3#
      • 1...Rg2
        • 2.Qe4#
      • 1...Rh2
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(b);XQ(D)::R(H)+K(G),XR(b)
    • B(g);XP(I)::R(H)+K(G),XB(g)
  • Tries
    • Try
      • B(L);CHECK,XR(i)
      • Refutation
        • S(k);XB(L)
  • Actual
    • K(G);P-FLIGHT,P_SPINQ(D)
    • Threat
      • R(H)+K(G)
    • Vars
      • R(b);CHECK,XQ(D)::R(H)+K(G),XR(b)
      • B(g);CHECK,XP(I)::R(H)+K(G),XB(g)
      • B(g);CHECK,XP(J)::R(H)+K(G),XB(g)
      • K(d);N_SPINR(i),P-FLIGHT,P_SPINP(f),XS(F)::R(H)+K(G)
      • R(b);N_PINQ(D)::QAR2(D)
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