MESON Chess Problem Database

Problem Display
PID: 15478 (1b3B2/3R2Q1/q1r4p/1pP1pR1B/b7/3Pk2p/4NN1r/2K2n2 w - - 0 1)

Pletenev, Nikolai Alexeyevich

Rychkov, Vladimir Nikolaevich

1st Prize, Probleemblad, 1984

1b3B2/3R2Q1/q1r4p/1pP1pR1B/b7/3Pk2p/4NN1r/2K2n2

#2

10 + 11

3748 FIDE Album (1983-1985) 1992
4001 Izbrannie Shakmatny Zadachi Vladimira Rychkova 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc5+
      • 2.Bxc5#
    • 1...Rd6
      • 2.Qxe5#
    • 1...Rc7
      • 2.Qxe5#
    • 1...Bd1
      • 2.Sxd1#
    • 1...Bd6
      • 2.Qxh6#
    • 1...Ba7
      • 2.Qxe5#
    • 1...Sg3
      • 2.Qxg3#
    • 1...e4
      • 2.Qd4#
  • Tries
    • 1.Bd6?
      • threat
        • 2.Qxe5#
        • 2.Qxh6#
      • 1...Rxc5+
        • 2.Bxc5#
      • 1...Rxd6
        • 2.Qxe5#
      • 1...Bxd6
        • 2.Qxh6#
      • 1...Rg2
        • 2.Qxe5#
      • 1...Sd2
        • 2.Qxh6#
      • 1...Sg3
        • 2.Qxh6#
        • 2.Qxg3#
      • 1...e4
        • 2.Qd4#
        • 2.Qxh6#
      • 1...Rxf2!
    • 1.Rd6?
      • threat
        • 2.Qxe5#
        • 2.Qxh6#
      • 1...Rxf2
        • 2.Rxe5#
        • 2.Qxe5#
      • 1...Rxd6
        • 2.Qxe5#
      • 1...Bxd6
        • 2.Qxh6#
      • 1...Rg2
        • 2.Qxe5#
      • 1...Sd2
        • 2.Qxh6#
      • 1...Sg3
        • 2.Qxh6#
        • 2.Qxg3#
      • 1...e4
        • 2.Qd4#
        • 2.Qxh6#
      • 1...Rxc5+!
    • 1.Qg4?
      • threat
        • 2.Qf3#
        • 2.Qe4#
      • 1...Rxc5+
        • 2.Bxc5#
      • 1...Rxf2
        • 2.Qe4#
      • 1...Sg3
        • 2.Qf3#
        • 2.Qxg3#
      • 1...e4
        • 2.Qxe4#
      • 1...Sd2!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Sd1#
      • 1...Rxc5+
        • 2.Bxc5#
      • 1...Rxf2
        • 2.Qxf2#
      • 1...Rd6
        • 2.Rxe5#
      • 1...Bd1
        • 2.Sxd1#
      • 1...Bd6
        • 2.Bxh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(i);CHECK,OGATE,XP(E)::B(J),XR(i)
    • R(i);N_PINP(E),S_CUTB(k)::QAR2(I),XP(g)
    • R(i);S_CUTB(k)::QAR2(I),XP(g)
    • B(e);N_GUARD::S(C),XB(e)
    • B(k);S_CUTR(i)::QAB(I),XP(j)
    • B(k);N_GUARD::QAR2(I),XP(g)
    • S(a);N_GUARD::QAR2(I),XS(a)
    • P(g);OGATE::QAB1(I)
  • Tries
    • Try
      • B(J);
      • Threat
        • DUALS(2)
      • Vars
        • R(i);CHECK,OGATE,XP(E)::B(J),XR(i)
        • R(i);N_PINP(E),XB(J)::QAR2(I),XP(g)
        • B(k);XB(J)::QAB(I),XP(j)
        • R(b);::QAR2(I),XP(g)
        • S(a);::QAB(I),XP(j)
      • Refutation
        • R(b);XS(C)
    • Try
      • R(H);
      • Threat
        • DUALS(2)
      • Vars
        • R(i);N_PINP(E),XR(H)::QAR2(I),XP(g)
        • B(k);XR(H)::QAB(I),XP(j)
        • R(b);::QAR2(I),XP(g)
        • S(a);::QAB(I),XP(j)
      • Refutation
        • R(i);CHECK,XP(E)
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Vars
        • R(i);CHECK,OGATE,XP(E)::B(J),XR(i)
        • R(b);XS(C)::QAR1(I)
        • P(g);::QAR1(I),XP(g)
      • Refutation
        • S(a);
  • Actual
    • Q(I);
    • Threat
      • QAB(I)+S(C),DCHECK
    • Vars
      • R(i);CHECK,OGATE,XP(E)::B(J),XR(i)
      • R(b);OGATE,P_SPINR(b),XS(C)::QAB1(I),XR(b)
      • R(i);N_PINP(E),S_CUTB(k)::R(F),XP(g)
      • B(e);::QAB(I)+S(C),DCHECK,XB(e)
      • B(k);S_CUTR(i)::B(J),XP(j)
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