MESON Chess Problem Database

Problem Display
PID: 6730 (Q7/5B2/1rn1N3/4pp2/prkN3K/1RP2P2/2R1P3/6B1 w - - 0 1)

Novejarque Iranzo, Francisco

1st Prize, Els Escacs a Catalunya, 1933

Q7/5B2/1rn1N3/4pp2/prkN3K/1RP2P2/2R1P3/6B1

#2

11 + 7

3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Sets
    • 1...Rb8
      • 2.Qxc6#
    • 1...Sa5
      • 2.cxb4#
    • 1...Sa7
      • 2.cxb4#
    • 1...Se7
      • 2.cxb4#
    • 1...Sb8
      • 2.cxb4#
    • 1...Sd8
      • 2.cxb4#
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sec7#
      • 1...Kxb3+
        • 2.Sed4#
      • 1...Kxb5+
        • 2.c4#
      • 1...Kd5+
        • 2.Sf4#
      • 1...R4xb5
        • 2.Sc5#
      • 1...R6xb5
        • 2.Sc5#
      • 1...Sd4
        • 2.Rxb4#
      • 1...Sa5
        • 2.Rxb4#
      • 1...Sa7
        • 2.Rxb4#
      • 1...Se7
        • 2.Rxb4#
      • 1...Sb8
        • 2.Rxb4#
      • 1...Sd8
        • 2.Rxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(f);N_GUARD::QAR2(K),XS(g)
    • S(g);::R(B)+P(E),XR(b)
  • Actual
    • S(G);
    • Threat
      • B(J)+S(I)
    • Vars
      • K(c);CHECK,S_FLIGHT,XR(D)::B(J)+S(I),DCHECK
      • K(c);CHECK,OGATE,P_SPINR(b),S_FLIGHT,XS(G)::P(E)
      • K(c);CHECK,P_SPINS(g),S_FLIGHT::B(J)+S(I),DCHECK
      • R(b);XS(G)::B(J)+S(I)
      • R(f);SBLOCK,XS(G)::B(J)+S(I)
      • S(g);N_GUARD::R1(D),XR(b)
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