MESON Chess Problem Database

Problem Display
PID: 170012 (6r1/4P1bB/1RR5/3k4/5B2/1PP2p1K/3nr1Q1/8 w - - 0 1)

Salamanca, Tomas

HM., Enroque!!, 1946

6r1/4P1bB/1RR5/3k4/5B2/1PP2p1K/3nr1Q1/8

#2

9 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Qxd2#
    • 1...Rd8
      • 2.exd8Q#
      • 2.exd8R#
    • 1...Be5
      • 2.Qxg8#
    • 1...Sc4
      • 2.bxc4#
    • 1...Se4
      • 2.Bxg8#
  • Tries
    • 1.Rc8?
      • threat
        • 2.Rd6#
      • 1...Re5
        • 2.Qxd2#
      • 1...Re6
        • 2.Rb5#
      • 1...Rd8
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Be5
        • 2.Qxg8#
      • 1...Sc4
        • 2.bxc4#
      • 1...Se4
        • 2.Bxg8#
      • 1...Rxc8!
    • 1.Qxf3+?
      • 1...Re4
        • 2.Bxg8#
      • 1...Se4
        • 2.Bxg8#
      • 1...Sxf3!
    • 1.Qg5+?
      • 1...Be5
        • 2.Qxg8#
      • 1...Re5!
  • Keys
    • 1.Rc7!
      • threat
        • 2.Rd6#
      • 1...Re5
        • 2.Qxd2#
      • 1...Re6
        • 2.Rb5#
      • 1...Rd8
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Be5
        • 2.Qxg8#
      • 1...Sc4
        • 2.bxc4#
      • 1...Se4
        • 2.Bxg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(b);OGATE::QAR(A),XS(a)
    • R(f);OGATE::PXR(f)=Q
    • B(e);OGATE::QAB(A),XR(f)
    • S(a);OGATE::P(B),XS(a)
    • S(a);N_SPINP(c),SBLOCK,S_CUTR(b)::B(I),XR(f)
  • Tries
    • Try
      • R(G);
      • Threat
        • R1(F)
      • Vars
        • R(b);OGATE::QAR(A),XS(a)
        • R(b);SBLOCK::R(F)
        • R(f);OGATE::PXR(f)=Q
        • B(e);OGATE::QAB(A),XR(f)
        • S(a);OGATE::P(B),XS(a)
        • S(a);N_SPINP(c),SBLOCK,S_CUTR(b)::B(I),XR(f)
      • Refutation
        • R(f);XR(G)
    • Try
      • Q(A);CHECK,XP(c)
      • Vars
        • R(b);P_SPINR(b)::B(I),XR(f)
        • S(a);P_SPINS(a)::B(I),XR(f)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);CHECK,N_PINP(c)
      • Vars
        • B(e);OGATE,P_SPINB(e)::QAB(A),XR(f)
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • R(G);
    • Threat
      • R1(F)
    • Vars
      • R(b);OGATE::QAR(A),XS(a)
      • R(b);SBLOCK::R(F)
      • R(f);OGATE::PXR(f)=Q
      • B(e);OGATE::QAB(A),XR(f)
      • S(a);OGATE::P(B),XS(a)
      • S(a);N_SPINP(c),SBLOCK,S_CUTR(b)::B(I),XR(f)
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