MESON Chess Problem Database

Problem Display
PID: 112937 (2R2R2/rn2Qpq1/3P4/2Pk4/4pP2/BbP1Pr2/pN3PN1/K7 w - - 0 1)

Servais, Albert

Volksgazet, 1954

2R2R2/rn2Qpq1/3P4/2Pk4/4pP2/BbP1Pr2/pN3PN1/K7

#2

13 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc3
      • 2.Qxf7#
    • 1...Qd4
      • 2.Qxf7#
    • 1...Qe5
      • 2.Qxe5#
    • 1...Qh6
      • 2.Qe5#
    • 1...Qxf8
      • 2.Qe5#
    • 1...Qh8
      • 2.Qxf7#
    • 1...Qxg2
      • 2.Qe5#
      • 2.Qxf7#
    • 1...Qg3
      • 2.Qe5#
      • 2.Qxf7#
    • 1...Qg4
      • 2.Qe5#
    • 1...Qg5
      • 2.Qxf7#
    • 1...Qg6
      • 2.Qe5#
    • 1...Qh7
      • 2.Qe5#
    • 1...Qg8
      • 2.Qe5#
    • 1...Rxe3
      • 2.Sxe3#
    • 1...Rxf4
      • 2.Sxf4#
    • 1...Bd1
      • 2.c4#
    • 1...Bc2
      • 2.c4#
    • 1...Ba4
      • 2.c4#
    • 1...Sxc5
      • 2.Rxc5#
    • 1...Sxd6
      • 2.Qxd6#
  • Keys
    • 1.Rfe8!
      • threat
        • 2.Qxe4#
      • 1...Rxe3
        • 2.Sxe3#
      • 1...Rxf4
        • 2.Sxf4#
      • 1...Sxc5
        • 2.Rxc5#
      • 1...Sxd6
        • 2.Qxd6#
      • 1...Qd4
        • 2.Qxf7#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qg6
        • 2.Qe5#
      • 1...Qh7
        • 2.Qe5#
      • 1...Ra4
        • 2.Qxb7#
      • 1...Bc2
        • 2.c4#
      • 1...f5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • Q(i);N_GUARD,P_PINS(B),XP(F)::QAB(K),XP(h)
    • Q(i);N_GUARD::QAB(K),XP(h)
    • Q(i);N_GUARD::QAR1(K),XQ(i)
    • Q(i);N_GUARD::QAR1(K)
    • Q(i);N_GUARD,XR(M)::QAR1(K)
    • R(c);XP(G)::S(D),XR(c)
    • R(c);XP(H)::S(D),XR(c)
    • B(b);N_GUARD::P(F)
    • S(g);OGATE,XP(I)::R1(L),XS(g)
    • S(g);OGATE,XP(J)::QAR1(K),XS(g)
  • Actual
    • R(M);
    • Threat
      • QAB1(K),XP(d)
    • Vars
      • R(c);XP(G)::S(D),XR(c)
      • R(c);XP(H)::S(D),XR(c)
      • S(g);OGATE,XP(I)::R1(L),XS(g)
      • S(g);OGATE,XP(J)::QAR1(K),XS(g)
      • Q(i);N_GUARD::QAB(K),XP(h)
      • Q(i);N_GUARD::QAR1(K),XQ(i)
      • Q(i);N_GUARD::QAR1(K)
      • R(f);N_GUARD::QAB(K),XS(g)
      • B(b);N_GUARD::P(F)
      • P(h);N_GUARD::QAB1(K)
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