MESON Chess Problem Database

Problem Display
PID: 32090 (3r4/1pN1QB2/1P1p1ppB/1R4rq/pp1kP1pp/8/1P2PP2/1N2K3 w - - 0 1)

Modlitba, Zdenek

Pruboj, 1988

3r4/1pN1QB2/1P1p1ppB/1R4rq/pp1kP1pp/8/1P2PP2/1N2K3

#2

12 + 12

3449 Czech Album (1988-1990) 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb5
      • 2.Be3#
    • 1...Rc5
      • 2.Be3#
    • 1...Rf5
      • 2.Be3#
    • 1...d5
      • 2.Rxb4#
    • 1...f5
      • 2.Bg7#
  • Tries
    • 1.Se6+?
      • 1...Kxe4
        • 2.Sd2#
      • 1...Kc4!
    • 1.Rc5?
      • threat
        • 2.Rc4#
      • 1...Rxc5
        • 2.Be3#
      • 1...dxc5
        • 2.Sb5#
      • 1...Rd5
        • 2.Be3#
      • 1...d5
        • 2.Sb5#
      • 1...Kxc5!
    • 1.Rd5+?
      • 1...Kc4
        • 2.Sd2#
      • 1...Rxd5!
    • 1.Rf5?
      • threat
        • 2.Sb5#
      • 1...Rxf5
        • 2.Be3#
      • 1...d5
        • 2.Qxb4#
      • 1...gxf5!
    • 1.Qxd6+?
      • 1...Kxe4
        • 2.Sd2#
      • 1...Rd5
        • 2.Rxb4#
      • 1...Rxd6!
    • 1.Qxf6+?
      • 1...Kxe4
        • 2.Sd2#
        • 2.Rxb4#
      • 1...Re5!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Se6#
      • 1...Rxb5
        • 2.Be3#
      • 1...Rc5
        • 2.Be3#
      • 1...Rd5
        • 2.Be3#
      • 1...Re5
        • 2.Be3#
      • 1...d5
        • 2.Rxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(f);OGATE,XR(G)::B(I)
    • R(f);OGATE::B(I)
    • P(h);::R(G),XP(b)
    • P(i);OGATEB::B(I)
  • Tries
    • Try
      • S(J);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(F)::S(A)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(G);
      • Threat
        • R1(G)
      • Vars
        • R(f);OGATE,SBLOCK,XR(G)::B(I)
        • P(h);XR(G)::S(J)
        • R(f);OGATE::B(I)
        • P(h);::S(J)
      • Refutation
        • K(c);P_SPINP(h),S_FLIGHT,XR(G)
    • Try
      • R(G);CHECK
      • Vars
        • K(c);P-FLIGHT::S(A)
      • Refutation
        • R(f);XR(G)
    • Try
      • R(G);
      • Threat
        • S(J)
      • Vars
        • R(f);OGATE,XR(G)::B(I)
        • P(h);OGATE::QAR2(K),XP(b)
      • Refutation
        • P(j);XR(G)
    • Try
      • Q(K);CHECK,XP(h)
      • Vars
        • K(c);P-FLIGHT,XP(F)::S(A)
        • R(f);P_SPINR(f)::R(G),XP(b)
      • Refutation
        • R(l);XQ(K)
    • Try
      • Q(K);CHECK,XP(i)
      • Refutation
        • R(f);P_SPINR(f)
  • Actual
    • S(A);
    • Threat
      • S(J)
    • Vars
      • R(f);OGATE,XR(G)::B(I)
      • R(f);OGATE::B(I)
      • P(h);::R(G),XP(b)
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